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Merck

634867

Sigma-Aldrich

二氧化硅

single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm

别名:

方石英, 石英, 砂石, 硅石

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About This Item

线性分子式:
SiO2
CAS号:
分子量:
60.08
EC號碼:
MDL號碼:
分類程式碼代碼:
12352303
PubChem物質ID:
NACRES:
NA.23

等級

optical grade

化驗

99.99% trace metals basis

形狀

solid

硬度

7.0 mohs

長度 × 寬度 × 厚度

10 mm × 10 mm × 0.5 mm

折射率

n20/D 1.544 (lit.)

mp

1610 °C (lit.)

轉變溫度

Tm 573.1 °C (phase change)

密度

2.6 g/mL at 25 °C (lit.)
2.684 g/mL

SMILES 字串

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI 密鑰

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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應用

SiO2因其绝佳的热机械性能而作为基质材料用于一系列的应用,包括:
  • 气相沉积
  • 相沉积
  • 原子力显微镜探针(AFM)
  • 旋涂
  • 电子设备

特點和優勢

应用于无线通信领域的微波滤波器的出色基片。

外觀

六角形结晶(a = 4.914 Å, c = 5.405 Å)

其他說明

比热 = 0.18 cal/g;热电常数 = 1200μV/°C @ 300 °C;热导率 = 0.0033 cal/cm°C;热膨胀 (x10-6) = α;11: 13.71, α33: 7.48;Q值 = 1.8 × 106 min;音速,SAW = 3160 m/sec; 频率常数,BAW = 1661 kHz/mm;压电耦合 = K2 BAW: 0.65%, SAW: 0.14%

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

nwg

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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Growth model of bamboo-shaped carbon nanotubes by thermal chemical vapor deposition.
Lee CJ and Park J
Applied Physics Letters, 77(21), 3397-3399 (2000)
Measurement of the adhesion force between carbon nanotubes and a silicon dioxide substrate.
Whittaker JD, et al.
Nano Letters, 6(5), 953-957 (2006)
Oxygen-aided synthesis of polycrystalline graphene on silicon dioxide substrates.
Chen J, et al.
Journal of the American Chemical Society, 133(44), 17548-17551 (2011)
The effect of calcination temperature on the surface microstructure and photocatalytic activity of TiO2 thin films prepared by liquid phase deposition.
Yu J, et al.
The Journal of Physical Chemistry B, 107(50), 13871-13879 (2003)

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