PROPERTIES		UNITS	M  A  T  E  R  I  A   L  S
			Quartz	Silicon	99.5% Aluminum Oxide	Aluminum Nitride	Silicon Nitride	Silicon Carbide	Sapphire	Pyrex
MECHANICAL	Density	g/cm³	2.2	2.33	3.8 - 3.9	3.19 - 3.25	3.18 - 3.30	3.08 - 3.20	3.97	2.23
	Color	_	white / transparent	gray	ivory/white	gray	gray	black	white / transparent	white / transparent
	Water Absorption	%	0	0	0	0	0	0	0	0
	Flexural Strength	MPa@room temp.(R.T.)	80	_	310 - 379	428	338 - 590	462	760 - 1035	_
	Compressive Strength	MPa@R.T.	650 - 1100	_	2070-2620	_	_	1725-2500	2000	_
	Hardness	GPa	11.5 - 13.5	11.3	13.8 - 17.6	10.4 - 11.7	13.2 - 14.7	23.5 - 24.5	18.5 - 21.5	4.1
THERMAL	Linear Thermal Expansion	1E-6/°C (»25°C to £1000°C)	0.55	2.3 - 2.6	8.0 - 9.4	4.6 - 5.7	2.5 - 3.5	4.0 - 4.5	7.9 - 8.8	3.25 (£300°C)
	Thermal Conductivity	W/m°K@R.T.	1.4	125	25.1 - 35.6	100 - 115	15 - 30	75 - 155	40	1.1
	Specific Heat	cal/g°C@R.T.	0.16	0.18	0.19 - 0.21	_	0.17	0.15	0.18	0.18
	Thermal Shock Resistance	D T(°C)	_	_	200	400	500 - 670	350 - 500	_	100
	Max. Use Temperature	°C	1200	1350	1600-1750	1600	1200-1400	1400	» 2000	230 - 490
ELECTRICAL	Volume Resistivity	W cm@R.T.	7x1E7	0.005 - >20	>1E14	>1E14	1E12	1E8	1E16	_
	Dielectric Constant	1MHz@R.T.	3.75	11.7	9.6 - 10.2	8.0 - 9.0	_	_	9.3 - 11.5	4.6

Although great care has been taken by Quartztech Engineering, Inc. to ensure that this information is current and accurate, Quartztech Engineering, Inc. disclaims any and all liability from erros, omissions or inaccuracies whether attributable to inadvertence or otherwise, and for any consequences arising therefrom

Contact Information

Address:	Quartztech Engineering Inc. 9348 South 500 West Sandy, Utah 84070, USA
Telephone:	801 / 255-1600
Fax:	801 / 255-1640
Email:	sales@quartztecheng.com
Contacts:	Josip Herak (Administration) Justin Walters (Administration)

Ceramics:

Applied Ceramics Inc.

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