Product Details

STA china professional manufacturer alumina ceramic bushing sheath

Our Alumina Ceramic Parts have the property of the resistant-high-temperature, resistant-corrosion, resistant-wearing and good sealing and are widely used in spacecraft, machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on.

We can do the product according to customer drawing desigin .

♣material:

95% , 99%, 99.7% alumina ,cordierite,steatite,

size:as customized

♣Alumina Ceramic Parts Technical Data:

Item	Test Condition	Unit Symbol	95% Al₂O₃	99% Al₂O₃
Bulk Density		g/cm³	≥3.6	≥3.7
Acid Resistance	1:9HCl	mg/cm²	≤7	≤0.7
Alkali Resistance	10% NaOH	mg/cm²	≤0.2	≤0.1
Tensile Strength	25°C	Mpa	≥160	≥190
Flexural Strength	25°C	Mpa	≥280	≥300
Coefficient of Linear Expansion	20-500°C	1X 10^-6/°C	6.5-7.5	6.5-7.5
Coefficient of Linear Expansion	20-800°C	1X 10^-6/°C	6.5-8.5	6.5-8.5
Young's Modulus of Elasticity		Gpa	≥280	≥280
Dielectric Loss	1MHz 20°C	1X 10^-4	≤4	≤2.5
Dielectric Constan	1MHz 20°C		9-10	9-10.5
Volume Resistivity	100°C	Ωcm	≥10¹³	≥10¹³
	300°C	Ωcm	≥10¹⁰	≥10¹⁰
	500°C	Ωcm	≥10⁸	≥10⁹
Dc Breakdown Strength	D.C.	Kv/mm	≥18	≥15
Vickers Hardness		Mpa	1600	1650
Fracture Toughness		MPam^½	3.8	4.2
Poisson's Ratio			0.22	0.25

Packaging & Shipping