Xingfeng Ceramics Factory Fengfeng Ceramics Co.,Ltd Xingchang Electronic Ceramics Research Institute

Current location：Electrical Ceramics

(Magnesia ceramics)
Essential components	MgO
	Density		g/cm³	3.56
Material characteristics	Water Absorption		％
	Agglomeration temperature		℃
	Hardness		HV
	Anti—Folding Strength		Kgf/cm²	840
Physical characteristics	Compressive Strength		Kgf/cm²	140
	Tenacity		Map.m^3/2	350
	Highest application temperature		℃
	Thermal expansion coefficient O-1000℃		/℃
Thermodynamic property	Heat resistance		T(℃)
	Thermal conductivity		W/m.k(25-300℃)	41.87～15.91
		20℃		>1012
		100℃	>.cm	>1012
Electrical specification	Volume resistivity	300℃		5*1010
	Insulation breakdown intensity		KV/mm
	Dielectric constant		100MHz(E)	350

Magnesia ceramics have good thermal conductivity，high temperature electric insulation and good high-frequency response．They are widely used in crucible，electric heater and other electric appliances.