fused silica young's modulus

Fused Silica Optics for sale, Quality Uncoated UV Fused Silica Quartz optics on sale of Fused Silica Optics Co.,LTD from China. 82.71 GPa . Surface microhardness at elevated temperatures vs. temperature. In fact, it has been a long history to find this relation, and it is still an on-going topic. Sign In; Create Account; Show search Show menu. Fused Silica is tough and hard and has a very low expansion. 73 Shear Modulus (G) in GPa @ 25C 31 Bulk Modulus (K) in GPa @25 C 36,9. As the fiber is heated, the modulus gradually increases. Structure of quartz and fused silica In the quartz glass structure all atoms are bonded t at least two others. Soda-lime glass, also called soda-lime-silica glass, is the most prevalent type of glass, used for windowpanes and glass containers (bottles and jars) for beverages, food, and some commodity items. Young's modulus (E), Modulus of rigidity (G) and Poisson's ratio ( s) are calculated using the following equations. Fused Silica (FS or fused quartz is a term used to describe a family of very hard and transparent glass with excellent optical properties. For all the specimens in this study from the baseline to those containing 50 wt% silica filler, the thermal expansion coefficients and the Young's . Youngs Modulus (E) 335 GPa: Shear Modulus (G) 148.1 GPa: Bulk Modulus (K) 240 GPa: Elastic Coefficients: C11=496 C12=164 C13=115 C33=498 C44=148 . Infrared (IR) Grade Fused Silica Ultraviolet (UV) Grade Fused Silica Mechanical Properties Compressive (Crushing) Strength 1100 MPa 160 x 103 psi Elastic (Young's, Tensile) Modulus 73 GPa 11 x 106 psi Flexural Strength 67 MPa 9.7 x 103 psi Knoop Hardness 570 Poisson's Ratio 0.17 AbstractIn this study, the evaluation of thermal stability of the micrometer-sized silica particle reinforced epoxy composite was carried out through the measurement of thermal expansion coefficient and Young's modulus of the specimens. Dynasil 1100 glass is a fused silica material which is virtually bubble free. A is the cross-sectional surface area or the cross-section perpendicular to the applied force. 36.5 MPa . The figure depicts a given uniaxial stress for tensile (extension, left) or pressure (compression, right). There are 24 material properties with values for both materials. The design tensile strength for fused quartz with good surface quality is in excess of 4.8 x 10 7 Pa (7,000 psi). The surface Young's modulus ( E) and hardness ( H) of fused silica samples have been studied by nanoindentation. It is defined as the ratio of the stress along an axis over the strain along that axis in the range of elastic soil behaviour. Silica is one of the most abundant oxides in the earths crust. Young's Modulus: 163 .. 188 GPa: Wafer,Si: 111>,value obtained by using micro-indentation test.Thin Solid Films,283(1996), p.13: Young's Modulus: 160 GPa: Silicon: 111>,crystalline,undoped polished, obtained by SAW technique,using the ns Nd:YAG at 355 nm for launching and the probe beam deflection arrangement for detecting SAW pulses. Solubility in Wate: 0.0017 g / 100 g @ 20 C . We have set your country/region to Canada. 7940 Fused Silica 10.4 4.5 0080 Soda Lime Silicate 10.2 4.2 7900 96% Silica 10 4.2 7740 Borosilicate, Low Expansion 9.1 3.8 7070 Borosilicate, Low Loss 7.4 3 E = Young's Modulus 0.17. Young's Modulus Young's modulus (E), also known as elastic modulus, describes how a material deforms under a normal, or tensile, stress. . F is the force of compression or extension. Together with the strength of the siliconoxygen (Si-O) chemical bond gives quartz glass high temperature stability and chemical resistance. While the simplication of using the highest possible value of Young's modulus was acceptable for the purpose of introducing silicon micromachining to the community 25 years SGP can CNC mill, drill, cut, lap, and polish Dynasil 1100 in many sizes, shapes, and surface finishes. Yield Strength of Quartz Two factors strongly affect the results of E and H. One factor is the polishing quality of the fused silica surface. Effect of Surface Flaws on Mechanical Properties Fused Silica is extremely strong in compression, with a design compressive strength greater than 1.1 x 10 9 Pa. shall show, the possible values for Young's modulus range from 130 to 188 GPa, and those for Poisson's ratio range from 0.048 to 0.40. There is a huge range of glasses available for which we hold data and some stock. Four basic types of lamp grade quartz are available, each designed to fulfill specific performance requirements. Young's modulus: 71.7 GPa; Poisson's ratio: 0.17; Lam elastic constants: . Fused Silica Optics for sale, Quality UV Grade Thin Fused Silica Optical Windows on sale of Fused Silica Optics Co.,LTD from China. . Relationship between the Elastic Moduli. Fused silica is the glassy form of quartz and is thus isotropic. [100] Young's modulus : Y 0 =(C 11 +2C 12) . Using Knoop's pyramid test Siegle et al. K is the bulk modulus. Under tension, the story is more complicated. 5.5x10-7 cm/cm.C (20 . Young's Modulus: 71.2: 74.8: GPa: 10.3267: 10.8488: 10 6 psi: Glass Temperature: 1233: 1492: K: 1759.73: 2225.93 F . 809-814 (1984). . Modulus of elasticity at 20 C (N/mm 2) 7.25 10 4: 7.25 10 4: 7.25 x 10 4: Modulus . Fused silica, commonly referred to as synthetic fused quartz, is produced using high purity silica sand that is manufactured from SiCL 4. Fused Silica glass is pure silicon dioxide (100% SiO2) in the non-crystalline state, as well as silicon dioxide in the organic state and silicon oxide in the liquid state (in this case a liquid). from publication: Influence of . internal diameter by 30 cm. The shear modulus of elasticity of Silicon is 60 GPa. Weight loss in vacuum ranges from 10 -7 to 10 -6 g/cm 2 .sec over a temperature range of 1700 . To measure Young's modulus, a material is either pulled or compressed along its length, and the resulting change in length is measured. The Young's modulus of elasticity is the elastic modulus for tensile and compressive stress in the linear elasticity regime of a uniaxial deformation and is usually assessed by tensile tests. It exists in 3 crystalline forms as well as amorphous forms. The Young's modulus of elasticity of unannealed silicate glass fibers ranges from about 52 GPa to 87 GPa. During an experiment the ends of this fuLrnace were closed with asbestos shields carrying short (2 to 3 cm.) Rigidity modulus: 31 GPa Young's modulus: 71.7 GPa Poisson's ratio: 0.17 Lame elastic constants: =15.872 GPa, =31.261 GPa Coefficient of thermal expansion . In practice, a design stress of 0.68 x 10 7 Pa (1,000 psi) is generally recommended. . For pure inorganic silica coatings, i.e., TEOS, the structure is dense, similar to a pure glass network, but with the addition of the small-chained organic VTMS (2 carbon chain length), the short-range network was modified, though not significantly. . Rupture Modulus in MPa @ 25C silica tube furnace 2 5 cm. Combining the results in Fig. Fused silica is known as the purest form of glass and has many industrial uses due to its properties. Fused silica is produced using high-purity silica sand as the feedstock, and is normally melted using an electric furnace, resulting in a material that is translucent or opaque. Fused Silica Optics for sale, Quality UV Grade Fused Silica Mirror Optics withTransmission Curve on sale of Fused Silica Optics Co.,LTD from China. Fused Silica elasticity modulus is 73 GPa at 25C. Soil Young's modulus (E), commonly reffred to as soil elastic modulus, is an elastic soil parameter and a measure of soil stiffness. font size. Compared to other materials, ceramics, tungsten and molybdenum have a very high Young's modulus. Young`s modulus comparative graph Fracture toughness Fracture toughness can be defined as resistance to crack growth. . The higher the Young's Modulus of a certain material is, the stiffer it is and the better it can withstand tension occuring. Young's Modulus (GPa): 73 . Popular Products of Uncoated UV Fused Silica Quartz optics by Fused Silica Optics - Fused Silica Optics Co.,LTD from China. Young's Modulus: 90,3 GPa (mean value) Poisson's ratio: 0,24; Knoop hardness : 620 (HK 0,1/20 ; ISO 9385) . The mechanical stiffness of materials under uniaxial loading is called the Young's modulus, and is typically represented by the symbol E in engineering texts, so Hooke's law is often written as =E . It has excellent transmission capabilities in the ultraviolet range. Figure 2.2: (a) Structure of fused silica glass along with (b) a six-membered ring structure of SiO. Two factors strongly affect the results of E and H. One factor is the polishing quality of the fused silica surface. Tensile Modulus - or Young's Modulus alt. G is the shear modulus. The U.S. Department of Energy's Office of Scientific and Technical Information skip to main content. Fused Silica (also named Fused Quartz, Fused SiO 2) is the glassy form of quartz and is thus isotropic. It also has higher hardness. The moduli of Pyrex and quartz increased with rising temperature, up to the softening point of the glass, while that of soft glass decreased. HPFS Fused Silica Standard Grade . REFERENCES: (1) Handbook Optical Constants, ed Palik, V1, ISBN -12-544420-6 High purity alumina is usable in both oxidizing and reducing atmospheres to 1925C. When subjected to sufficiently large compressive stresses, fused silica glass will densify permanently. lengths of silica tube . Fused Silica Optics for sale, Quality UV Grade Fused Silica Windows / JGS1 JGS2 JGS3 Optial Glass Windows on sale of Fused Silica Optics Co.,LTD from China. GE Quartz is the world's leading producer of fused quartz for lighting applications. . Dynasil Fused Silica's Product Brochure Fused Silica Properties Fused silica glass is a form of non-crystalline silicon dioxide, produced synthetically by the vapor phase hydrolysis of a silicon halide. Young's Modulus. The bulk modulus of elasticity of Silicon is 98 GPa. . BK7 is a high quality optical glass that is used whenever the additional benefits of fused silica are not required. The equation for Young's modulus is: E = / = (F/A) / (L/L 0) = FL 0 / AL. A half-full bar means it's 50% of the highest, and so on. Popular Products of UV Grade Thin Fused Silica Optical Windows by Fused Silica Optics - Fused Silica Optics Co.,LTD from China. Optical Glass (N-BK7 types) Data Sheet Optical Glass (N-BK7 types) MSDS N-BK7 is a Schott designation for the most common Borosilicate Crown glass used for a wide variety of visible applications. On the other hand, fused silica's Young's modulus and fracture toughness are in the middle range of the optical glasses. during cooling, the curve does not follow the heating curve, but youngs modulus increases even slightly up to values of 29.1 gpa in the temperature range 800-1000 c and then decreases to values (again according to an s-shaped curve) of 12.9 gpa at a temperature of 220 c, followed again by a steep decrease below 215 c (within the 10 c from Bulk Modulus. Michelle gave a great summary on the qualitative relationship between hardness (H), elastic modulus (E), and yield strength (Y). Rupture Modulus. Poor polishing quality produces much smaller E and H than the literature values for bulk fused silica. is the Poisson number. Popular Products of UV Fused Silica Grades A Glass Optics by Fused Silica Optics - Fused Silica Optics Co.,LTD from China. Hardness of Silicon In materials science, hardness is the ability to withstand surface indentation (localized plastic deformation) and scratching. Fused Silica is difficult to fabricate and thus costs more than all the other glasses. The hardness and Young's modulus of the coatings declined noticeably with increasing level . This may be due to its low addition content as well as its detrimental effect on the densification of the composite. 19, pp. Coefficient of Thermal Expansion. 9, we also note that even simple algorithms, e.g., polynomial regression, can capture the non-linearity between composition and Young's modulus and yield . TECHSPEC 1 UV Fused Silica Windows are precision manufactured using UV-grade synthetic fused silica. Since BK7 performs well in all chemical tests, and no additional or special handling is required, costs of manufacturing are reduced. The surface Young's modulus (E) and hardness (H) of fused silica samples have been studied by nanoindentation. The expansion is also much smaller than the one of quartz glass or fused silica. . Fused silica is a noncrystalline (glass) form of silicon dioxide (quartz, sand). K. L Johnson ("Contact Mechanics", page 175) proposed one of the most famous models for explaining the physical process . Normal varieties of Fused Silica contain water which gives strong absortion in the IR. The second factor is surface flatness. It is tough and hard and has a very low expansion. 0.25: Solubility: 98x10-6g/100g water: Molecular Weight: 101.96: Class/Structure: trigonal (hex), R3c: Proterties of UV Fused Silica: transimission Range: 0.18 to 2.5um: Refractive Index: 1.46 . . 6.76 @ 27 C . Evaluation of Bulk Modulus of Oil System with Hydraulic Line; A Glossary of Hydraulics; 3.2 Elastic Constants and Moduli of Diamond Cubic Si; The Bulk Modulus of C60 Molecules and Crystals: a Molecular; A Benchmark for Some Bulk Properties of Bcc Iron; Modulus-Pressure Equation for Confined Fluids Abstract; What Is the Young's Modulus of Silicon? E Glass fibers that have been annealed to compact their atomic structure will increase in Young's modulus from 72 GPa to 84.7 GPa [4]. A material with low stiffness (red) provides a higher deformation . Rigidity Modulus. Water-free varieties of Fused Silica are available. Product Data Young's modulus, Modulus of rigidity and Poisson's ratio are determined by measuring the velocities of the longitudinal and transverse elastic waves in a well annealed rod of size 100 ~ 150 x 10 x 10 mm at room temperature. So, compared to other optical glasses, fused silica behaves differently under compressive loads. It's highly cross linked three dimensional structure gives rise to it's high use temperature and low thermal expansion coefficient. U.S. Department of Energy . is the strain. . From the above analysis, it can be concluded that, as the oxide grows, it consumes the silicon atoms at the surface of the wafer. Statistical Calculation and Development of Glass Properties Some glass bakeware is made of soda-lime glass, as opposed to the more common borosilicate glass. Data for Silicon and Germanium Single Crystals, and for Fused Silica, Journal of Applied Physics, Vol. . Vitreous Silica, in all its forms, offers a variety of properties such as: Permeability Extreme Hardness Modulus of Elasticity of Silicon The Young's modulus of elasticity of Silicon is 165 MPa. OSTI.GOV Journal Article: Surface Effects on Young's Modulud and Hardness of Fused Silica by Nanoindentation Study Key Fused Silica Properties Near zero thermal expansion Young's modulus describes tensile elasticity is the tendency of an object to deform along an axis when opposing forces are applied along that axis Now if the strain is applied sinusoidal as. [1] Tensile Modulus is defined as the With a low thermal expansion coefficient and high light transmittance it is a good selection for demanding ball lens applications in the ultraviolet, visible, and near infrared spectra. Fused quartz, fused silica or quartz glass is a glass consisting of almost pure silica (silicon dioxide, SiO 2) in amorphous (non-crystalline) form. By comparison, steel has a Young's Modulus of the order of 205 GPa. Fused Silica. See also: Strength of Materials Ultimate Tensile Strength of Quartz Ultimate tensile strength of Quartz is 48 MPa. Elastic Modulus of A Range of Glass Compositions as a Function of Temperature . 3.1x10 10 Pa (4.5x10 6 psi) Young's Modulus. For each property being compared, the top bar is borosilicate glass and the bottom bar is fused silica. Properties with values for just one material (6, in this case) are not shown. This causes the silicon-silicon dioxide interface to move into the wafer while the oxide grows. Lamp Grade Tubing. Elastic (Young's) Modulus 72.7 GPa Softening Point 1585 C . Young's Modulus: 745 X 103 Kg/cm2: Strain Point: 1000C/1832F: Poisson's Ratio.17 . Even for a well-polished . 988-997 (1953). Elastic Coefficient: C 11 = 164 C 12 = 53 C 44 = 33.7 GPa . Whare are Fused Silica Properties. Fused silica is an amorphous grade of silica known for its low thermal expansion and thermal shock resistance. Poor polishing quality produces much smaller E and H than the literature values for bulk fused silica. You can change this selection at any time, but products in your cart, saved lists, or quote may be removed if they are unavailable in the new shipping country/region. Applications for precision balls include: lenses, fiber optics, bar code readers, medical devices, insulators, electronics, optical measurement Fused Silica Glass Young's Modulus : 73 GPa at 25 C : Shear Modulus : 31 GPa at 25 C : Bulk Modulus : 36.9 GPa at 25 C : Poisson Ratio : 0.17 at 25 C : Rupture Modulus : Modulus of Elasticity - is a measure of stiffness of an elastic material. Dielectric Constant. Fused Silica Optics for sale, Quality Fused Silica Grades Glass Sheets Optics Manufacturers on sale of Fused Silica Optics Co.,LTD from China. It is tough and hard and has a very low expansion. The elastic modulus is often used for estimation of soil settement and . The TMDSO film deposited at 50 W and 0 had Young's modulus and hardness values in a similar range to fused silica/glass [5, 39], thus providing the context of the mechanical properties that . 8 and Fig. It hasmany useful properties and is used in a range of applications such as silicon, elctronics, refractories, sand, glass making, building materials, investment casting etc. Its high hardness, excellent dielectric properties, refractoriness and good thermal properties make it the material of choice for a wide range of applications. Typical of glasses, it lacks long range order in its atomic structure. The ambient temperature Young's modulus for SiO 2 +5 vol.% Si 3 N 4 kept basically at the same level with that of the fused silica in spite of the stiffness of Si 3 N 4 (>220 GPa) is much higher than that of the fused silica matrix. Together, these materials . Both borosilicate glass and fused silica are glass and glass-ceramics. 300 K, using Knoop's pyramid test see also Temperature dependence: Kern et al. (1997), . . . UV fused silica exhibits minimal fluorescence when exposed to . E = 2G (1+) = 3K (1-2) where: E is Young's modulus. Where: E is Young's modulus, usually expressed in Pascal (Pa) is the uniaxial stress. It is made by melting high purity silica sands and has uses in refractories, investment casting, radar windows etc . The basic data here is given for N-BK7. Young's Modulus: 66.3: 74.8: GPa: 9.616: 10 . J.C. Wang, Young's Modulus of Porous Materials, Part 2, Young's Modulus of Porous Alumina with Changing Pore Structure, Journal of Materials Science, Vol. (1013 poises) Modulus of Rupture, abraded 52.4 MPa Strain Point 893 C (1014.5 poises) Bulk Modulus 35.4 GPa Thermal Conductivity 1.30 W/m K Poisson's Ratio 0.16 Thermal Diffusivity 0.0075 cm2/s Normal varieties contain water which gives strong absorption in the IR. Fused Silica is the glassy form of Quartz and is thus isotropic. The finished product is a transparent glass with an ultra-high purity and improved optical transmission. 7.2x10 10 Pa (10.5x10 6 psi) Poisson's Ratio. For most silicate glasses, Poisson's ratio . Hooke's law can be extended to anisotropic materials with a tensor formulation that includes orientation: ij=cijklkl , or ij=sijklkl . It is used to describe the elastic properties of objects like wires, rods or columns when they are stretched or compressed. A factor of 10 difference between the production cooling rate and the application's cooling-rate may result in a permanent change of the CTE of 0,025 . Young's Modulus (E) in Gpa @ 25C. The information concerning the changes in Young's modulus of fused quartz is not so complete or exact. Shear Modulu: 33.77 GPa . Type 012 provides the ultra high purity of synthetic fused silica, while maintaining low (OH) at 5 ppm. Cleavage Planes (111) Applicatio: Spectroscopy, astronomy, lithography laser windows for . Typical Physical Properties of Fused Quartz Typical properties are average data and should not be used as or to develop product specifications. 8, pp. (1969), Shaffer: 3C-SiC. Only a cursory investigation upon the subject . 75.8 GPa . Download scientific diagram | Typical assessment of fused silica Young's modulus as a function of the displacement into the surface at strain rate 0.05 s 1 . It can withstand short-term operating temperatures of up to 1200 degrees . The dynamic Young's moduli and the internal friction of fused quartz, Pyrex glass, and soft glass rods were measured at a frequency of 37 kilocycles, in longitudinal vibration, within the temperature range 170 to 1000C. 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