Alumina Ceramics

Support processing, non-standard customization.

Forming method: dry powder pressing, isostatic pressing, hot die casting. Main uses of products: ceramic shafts for pumps, ceramic plungers for cleaning machines, wear-resistant, acid-resistant, and high-strength ceramic shaft components for the chemical, petrochemical, and petroleum industries, wear-resistant, corrosion-resistant, and high-temperature-resistant mechanical parts for precision machinery.
Material Property Items Unit 95%Al2O3 99%Al2O3 Density g/cm3 3.6 3.9 Flexural Strength MPa 313 340 Compressive Strength MPa 3400 3600 Modulus of Elasticity GPa 350 380 Impact Resistance MPa·m1/2 4 5.1 Weibull Modulus m 10 10 Vickers Hardness HV0.5 1500 1650 Thermal Conductivity W/mk 24 27 Highest Application Temperature ℃ 1750 1750 Volume Resistivity at 20℃ Ω.cm20 >10¹⁴ >10¹⁴ Dielertric strength KV/mm 20 25 Thermal expansion X10-6/K 5.0-8.3 5.4-8.3 Alumina ceramics have the characteristics of high mechanical strength, good wear resistance, corrosion resistance, high strength, small thermal expansion coefficient, and good chemical stability. Widely used in vulnerable parts of mechanical equipment such as machinery, electronics and electricity, automobiles, petroleum, chemicals, textiles, and medical treatment.

Items	Unit	95%Al2O3	99%Al2O3
Density	g/cm3	3.6	3.9
Flexural Strength	MPa	313	340
Compressive Strength	MPa	3400	3600
Modulus of Elasticity	GPa	350	380
Impact Resistance	MPa·m1/2	4	5.1
Weibull Modulus	m	10	10
Vickers Hardness	HV0.5	1500	1650
Thermal Conductivity	W/mk	24	27
Highest Application Temperature	℃	1750	1750
Volume Resistivity at 20℃	Ω.cm20	>10¹⁴	>10¹⁴
Dielertric strength	KV/mm	20	25
Thermal expansion	X10-6/K	5.0-8.3	5.4-8.3