云母片Mica Sheets and Disks
薄膜沉积、复制及原子力显微镜（AFM）研究的Z好产品。原子力显微镜要求基底达到原子级平整,硅片和玻璃表面的起伏很大,因而原子级平整的云母具有重要的价值。
云母可用作碳支持膜产品的基片，或超薄支持膜的基片，或用作微粒分散的无特征背景基片。此外，云母还用作TEM表征样品的基底，通常Z好在实验前对云母片进行硅烷化处理。我们用到的都是新剥离表面，不是“原始”表面。
我们所知的“云母”其实并非“完全相同”的一种物质，确切的说，所有云母都不一样。云母家族中包含有多种不同的矿物质，可用分类表对其质量进行区别。白云母有自己的化学组成和物理特性。一般按ASTM D351标准规定的方法测量，进行标准的品质分类，Z好的V-1，Z坏的V-10A。AFM研究一般用到Z好质量的V-1或者V-2，而一般薄膜沉积用到的是中等质量的V-4、V-5和V-6。
对于研究人员不仅要从类型上，而且要从品质上了解他们的差异。大家感兴趣的一般是云母家族中的白云母。白云母具有高度完全的的解理、无色透明或呈浅色。EMS云母产品有条状、盘状及片状，客户范围遍及世界。
Characteristics:
Muscovite, potash type mica, sometimes known as granitic mica, is the best of all micas in dielectric strength, perfection of cleavage, and transparency.
It has the following chemical formula: H2KAI3(Si04)3.
Chemical Composition:
| Silica: | 45.5% |
| Alumina: | 37.5% |
| Potash: | 12.0% |
| Water: | 5.00% |
It has a vitreous luster and is colorless to gray, brown, pale green, violet, dark olive green, or rose red. It may be transparent to translucent. It has strong double refraction and is optically negative. It loses water of constitution at 600°C and is practically non-magnetic. It exhibits pleochrism, which is the property of varying in color when viewed from different angles.
RUBY muscovite is harder than green and has a pale brownish red color in thin sheets (0.020") or ruby red in thick plates (0.4"). Ruby mica can be split easily into films of 0.001" or thinner because it has such excellent cleavage. In other colors, this thinness can be obtained but at a considerable risk of cracking.
Physical Properties:
| Hardness: Moh's scale: | 2.8 - 3.2 |
| Shore's Test: | 80 - 150 |
| Specific Gravity, g/cm³: | 2.6 - 3.2 |
| Tensile Strength, kg/cm²: | ~ 1750 |
| Compression Strength, kg/cm²: | 1900 - 2850 |
| Refractive Index (air=1): | 1.56 - 1.60/61 |
| Dielectric Strength @20°C in volt/mil: | 3,000 - 6,000 |
| Maximum Thermal Resistance: | 625°C (1,157°F) |
| Modulus of Elasticity, kgf/cm2E(-3): | 1400 - 2100 |
| Optic Axial Angle: | 50° - 75° |
| Coefficient of Expansion per °C: | Perpendicular to cleavage plane 9E(-4) - 36E(-4) |
| Calcining Temperature | 700 - 800°C |
| Thermal Conductivity: gm.cal/sec/cm2/°C/cm: | ~0.0013 |
| Water of Constitution, %: | 4 - 5 |
| Moisture Absorption: | Very low |
Apparent Electric Strength:
(0.001-0.003" thick) | 120 - 200kV/mm |
| Permittivity @ 15°C (60°F): | 6 - 7 |
| Power Factor (loss Tangent) @15°C: | 0.0001 - 0.0004 |
| Volume Resistively @25°C (77°F) 0hm.cm: | 4E(-15) - 2E(-17) |
| Acid Reaction : | Affected by HF |
Muscovite Mica V-1 Quality:
| Catalog # | Mica Size | Quality | Thickness (mm) | Pack | |
| 71855-01 | 50mm x 75mm | V-1 | 0.15 - 0.21 | each | |
| 71855-01-10 | | | | 10/pk | |
| 71855-05 | 25mm x 75mm | V-1 | 0.26 - 0.31 | each | |
| 71855-05-10 | | | | 10/pk | |
| 71855-10 | 25mm x 25mm | V-1 | 0.15 - 0.21 | each | |
| 71855-10-10 | | | | 10/pk | |
| 71855-11 | 25mm x 25mm | V-1 | 0.26 - 0.31 | each | |
| 71855-11-10 | | | | 10/pk | |
| 71855-15 | 15mm x 15mm | V-1 | 0.15 - 0.21 | each | |
| 71855-15-10 | | | | 10/pk | |
| 71856-01 | 9.5mm Diameter | V-1 | 0.15 - 0.21 | each | |
| 71856-01-10 | | | | 10/pk | |
| 71856-02 | 12mm Diameter | V-1 | 0.15 - 0.21 | 10/pk | |
| 71856-03 | 15mm Diameter | V-1 | 0.15 - 0.21 | 10/pk | |
| 71856-04 | 20mm Diameter | V-1 | 0.15 - 0.21 | 10/pk | |
Muscovite Mica V-2 Quality:
| Catalog # | Mica Size | Quality | Thickness (mm) | Pack |
| 71857-01 | 50mm x 75mm | V-2 | 0.15 - 0.21 | each |
| 71857-01-10 | | | | 10/pk |
| 71857-05 | 25mm x 75mm | V-2 | 0.26 - 0.31 | each |
| 71857-05-10 | | | | 10/pk |
| 71857-10 | 25mm x 25mm | V-2 | 0.15 - 0.21 | each |
| 71857-10-10 | | | | 10/pk |
| 71857-11 | 25mm x 25mm | V-2 | 0.26 - 0.31 | each |
| 71857-11-10 | | | | 10/pk |
| 71857-15 | 15mm x 15mm | V-2 | 0.15 - 0.21 | each |
| 71857-15-10 | | | | 10/pk |
| 71858-01 | 9.5mm Diameter | V-2 | 0.15 - 0.21 | each |
| 71858-01-10 | | | | 10/pk |
Muscovite Mica V-4 Quality:
| Catalog # | Mica Size | Quality | Thickness (mm) | Pack |
| 71853-01 | 50mm x 75mm | V-4 | 0.15 - 0.21 | 10/pk |
| 71853-05 | 25mm x 75mm | V-4 | 0.26 - 0.31 | 10/pk |
| 71853-10 | 25mm x 25mm | V-4 | 0.15 - 0.21 | 10/pk |
| 71853-11 | 25mm x 25mm | V-4 | 0.26 - 0.31 | 10/pk |
| 71853-15 | 15mm x 15mm | V-4 | 0.15 - 0.21 | 10/pk |
| 71854-01 | 9.5mm Diameter | V-4 | 0.15 - 0.21 | 10/pk |
| 71854-15 | 12.7mm Diameter | V-4 | 0.15 - 0.21 | 10/pk |
Muscovite Mica V-5 Quality:
| Catalog # | Mica Size | Quality | Thickness (mm) | Pack |
| 71850-01 | 50mm x 75mm | V-5 | 0.15 - 0.21 | 10/pk |
| 71851-05 | 25mm x 75mm | V-5 | 0.26 - 0.31 | 10/pk |
| 71850-10 | 25mm x 25mm | V-5 | 0.15 - 0.21 | 10/pk |
| 71850-11 | 25mm x 25mm | V-5 | 0.26 - 0.31 | 10/pk |
| 71850-15 | 15mm x 15m | V-5 | 0.15 - 0.21 | 10/pk |
| 71852-01 | 9.5mm Diameter | V-5 | 0.15 - 0.21 | 10/pk |
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