This technical information has been contributed by
Ferro-Ceramic Grinding, Inc.

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Ceramic Properties - Lava, Grade A

Lava is a machineable ceramic parts material, sometimes referred to as 'alumino-silicate', based on its chemical formula. It has a high use temperature, and excellent thermal and electrical insulating properties.

PropertiesUnitsTestValue
Physical
Chemical Formula[Al2(Si4O10)(OH)2]
Density, rg/cm3ASTM C202.30
Colorpink
Crystal Structurerandom
Water Absorption% @R.T.ASTM C3732.5
HardnessMoh's6
Hardnessknoop (kg/mm2)Knoop 100g500
Mechanical
Compressive StrengthMPa @ R.T.ASTM C773172.5
Tensile StrengthMPa @ R.T.ACMA Test #420.7
Modulus of Elasticity
(Young's Mod.)
GPaASTM C848--
Flexural Strength (MOR)MPa @ R.T.ASTM F41769
Poisson's Ratio, uASTM C818--
Fracture Toughness, KIcMPa x m1/2Notched Beam Test--
Thermal
Max. Use Temperature
(* denotes inert atm.)
CNo load cond.1150
Thermal Shock ResistanceDT (C)Quenching--
Thermal ConductivityW/m-K @ R.T.ASTM C4081.98
Coefficient of Linear Thermal Expansion, almm/m-C (~25C through 1000C)ASTM C3723.6
Specific Heat, cpcal/g-C @ R.T.ASTM C3510.20
Electrical
Dielectric Constant1MHz @ R.T.ASTM D1505.3
Dielectric StrengthkV/mmASTM D1160.1
Electrical ResistivityWcm @ R.T.ASTM D18291014

This technical information has been contributed by
Ferro-Ceramic Grinding, Inc.

Click here to find suppliers

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