Solar Grade Opaque Quartz Ingot

I. Application

Solar grade opaque quartz ingot is used as the base material of quartz heat insulator in solar cell manufacturing process.

II. Product Features

Solar grade opaque quartz ingot features high purity and good heat insulation, etc.

III. Product Type

WQPQ872S

IV. Typical Size

Size(OD*H)
450±3*500±3mm

V. Physical and Chemical Properties

i. Physical Properties

 Item Index Value
 Density(g/cm3) 2.0
 Heat Conductivity(w/m·k,1000℃) 2.28
 Bore Size(um) <50
 Coefficient of Linear Expansion(℃-1,0-900℃) 0.47×10-6
 Annealing Point(℃) 1080
 Maximum working temperature- Continuous(℃) 1100
 Maximum working temperature- Short-term(℃) 1300

ii. Trace Elements

Code Criteria Al Ca Cr Cu Fe K Li Mg Mn Na Ti Zr
 PQ872S Typical 16.2 1 <0.05 <0.05 0.5 1.2 0.9 0.2 <0.05 1.1 1.5 1
 Maximum 25 1.5 0.1 0.1 1 1.5 1.5 0.2 0.2 2 4 2

iii. Optical Properties

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