Properties of CERFINE® quartz ceramics

Special technology and high quality raw material provide unique properties of CERFINE^® quartz ceramics:

• very low impurity
• homogeneity
• low porosity
• thermal cyclic stability
• thermal and chemical resistance to fused metals and stags actions
• thermal and chemical resistance in aggressive media
• thermal and chemical resistance to fused salts and glass
• much slower crystallization compared with the quartz glass
• stable properties at high temperature

Properties

Operation temperature	up to 1400oC
Compression strength ,MPa	220 - 400
Bending strength, MPa	20 - 45
Young's modulus , GPa	25 - 40
Free porosity, %	5 - 16
being flowed	0
Density, kg/m3	1800 - 2000
Thermal coefficient of linear expansion(293-773oK),K-1	5,8*10-7
Thermal conductivity factor (293-673oK), W/(m*K)	0,6 - 0,9
Specific heat capacity (323-873oK), J/(kg*K)	890 - 1130
Thermal resistance (1273oK - into water), cycles at least	30
Specific resistance, Ohm/m	1012
Electric strength (25oC),V/m	(1- 2,5)*107

Chemical resistance: 

Weight loss after boiling during 3 hours, kg/m3	in concentrated acid (except HF)	(0.3 - 0.5)*10-2
	in alkali	(3 - 5)*10-2

CEROLAN SPC, Inc.