Ceramic Products Inc.

Ceramic Products, Inc.

* water not freshened daily ** water freshened daily


THERMAL PROPERTIES	SI/METRIC	ENGLISH

Coefficient of Expansion
-200 to 25°C	74x10-7/°C	41x10-7/°C
25-300°C	93x10-7/°C	41x10-7/°C
25-600°C	114x10-7/°C	41x10-7/°C
25-800°C	126x10-7/°C	41x10-7/°C
Specific Heat, 25°C	0.79KJ/kg°C	0.19 Btu/lb°F
Thermal Conductivity, 25°C	1.46 W/m°C	Btu in/10.16 ht ft²°F
Thermal Diffusivity, 25°C	97.3x10^-7m²/s	0028ft²/hr°C
Continuous Operating Temperature	800°C	1472°F
Maximum No Load Temperature	1000°C	1832°F
MECHANICAL PROPERTIES

Density	2.52 g/cm³	157 lbs/ft³
Porosity	0%	0%
Young's Modulus 25°C (Modulus of Elasticity)	66.9 GPa	9.7x10⁶ psi
Poisson's Raatio	0.29	0.29
Hardness
Knopp 100g	250	250
Rockwell A	48	48
Modulus of Rupture, 25°C (Flexural Strength)	94 MPa (min specified aver. value)	13,600 psi (min specified aver. value)
Compression Strength	345MPa	50,000 psi
Fracture Toughness	1.53 MPa m^0.5	1390 psi in^0.5
ELECTRICAL PROPERTIES

Dielectric Constant, 25°C
1 KHz	6.03	6.03
8.5 GHz	5.67	5.67
Loss Tangent, 25°C
1 KHz	4.7x10^-3	4.7x10^-3
8.5 GHz	7.1x10^-3	7.1x10^-3
Dielectric Strength, AC or DC (at 0.01" thickness, 25°C	40 KV/mm	1000v/mil
DC Volume Resistivity, 25°C	>10¹⁶ ohm-cm	>10¹⁶ ohm-cm
CHEMICAL PROPERTIES

TESTS				RESULTS
	pH	Time	Temp	Weight Loss (mg/cm) Gravimetric
5% HCL (Hydrochloric Acid)	0.1	24 hrs	95°C	˜100
0.002 N HNO₃ (Nitric Acid)	2.8	24 hrs	95°C	˜0.6
0.1 N NaHCO₃ (Dodium Bicarbonate)	8.4	24 hrs	95°C	˜0.3
0.02 N Nz₂CO₃ (Sodium Carbonate)	10.9	24 hrs	95°C	˜0.1
5% NaOH (Sodium Hydroxide)	13.2	24 hrs	95°C	˜10
Resistance to Water Over Time
H₂O	7.6	1 day*	95°C	0.01
		3 days*	95°C	0.01
		7 days*	95°C	0.01
		3 days**	95°C	0.01
		6 days**	95°C	0.01










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