Machining / Grinding Lava Ceramics

CiDRA® Precision Services, LLC has years of experience manufacturing micron level tolerance products from Lava Ceramics. We leverage our in-depth dicing, drilling, milling, grinding, and polishing capability to manufacture the highest quality Lava products.

Whether you need prototypes or volume production, CiDRA® Precision Services, LLC is here to help. Please contact us to discuss your applications.

About Lava Ceramics

Lava is a naturally occurring alumina silicate ceramic material. In its unfired state, lava is easily machined, but after firing, it develops higher hardness. Fired lava can be used at temperatures up to 1150°C, and has very good thermal and electrical insulating properties.

Lava Ceramics Applications

  • Feed-through insulators
  • Special furnace shapes
  • Tooling for ceramic machining

Lava Properties

 

Units

Lava Grade A
(Unfired)

Lava Grade A
(Fired)
Max Use Temperature
(No Load)		 C 650 1100-1150
Thermal Shock (Quenching) C
Thermal Conductivity W/(m K)   1.98
Specific Heat  J/(K kg)    
Coefficient of Thermal Expansion 1/C (x10e-6) 2.5 2.9-3.6
Color Gray Tan
Moh Hardness 2 6
Vickers Hardness kg/mm^2    
Knoop Hardness kg/mm^2 500
Density g/cm^3 2.5 2.3
Porosity % of nominal    
Compressive Strength Mpa 75.8 172.4
Tensile Strength Mpa 6.9 20.7
Flexural Strength MPa 27.6 68.9
Fracture Toughness MPa m^1/2
Young's Modulus GPa    
Poisson's ratio    
Dielectric Strength kv/cm 31.5 39.4
Dielectric Constant (@1MHz) 5.8 5.3
Dielectric Loss Tangent 0.06 0.05
Resistivity ohm cm    
The information provided in this table is for room temperature only, and is a compilation of publicly available data.  This information is provided for comparison purposes only, and is not intended to be warrantable.   Further, CiDRA® Precision Services, LLC disclaims any and all liability from errors, inaccuracies, or omissions.

 

Please contact us if you would like to discuss your Lava dicing, drilling, milling, grinding, polishing or any other machining applications.