PRODUCT

AlN Structural Parts

More than 10 million of our products have been used in the global power transmission and distribution field

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Advantages

• Excellent electrical performance

• Air tightness

• High sealing strength

• High reliability

Performance parameter

SN	Performance Name	Test conditions and units	96 alumina porcelain	97 alumina porcelain	99 alumina porcelain	99.6 Alumina porcelain
1	Content of main components		Al₂O₃≧95%	Al₂O₃≧97%	Al₂O₃≧99%	Al₂O₃≧99.6%
2	Machinable size	Min Max in mm	0.5-500	0.5-500	0.5-500	0.5-500
3	Highest precision of machinable dimension	Micron	10	10	10	10
4	bulk density	Room temperature, g/cm³	≧3.67	≧3.70	≧3.85	≧3.90
5	Flexural strength	Room temperature, MPa	≧300	≧300	≧350	≧400
6	compressive strength	Room temperature, GPa	≧1.8	≧1.8	≧2.0	≧2.3
7	Thermal conductivity	W/m.K	10-20.0	10-20.0	15-21.0	15-21.0
8	Average linear expansion coefficient	（20～500）℃，/℃	7.36×10^-6	6.9×10^-6	6.9×10^-6	6.9×10^-6
9	Dielectric constant	20℃	9.1	9.5	9.8	10
10	Tangent value of dielectric loss angle	20℃	≦4×10^-4	≦3×10^-4	≦2×10^-4	≦2×10^-4
11	Volume resistivity	100℃， Ω.cm	≧1×10¹⁴	≧1×10¹⁴	≧1×10¹⁴	≧1×10¹⁴
12	DC breakthrough strength	KV/mm	≧30	≧35	≧25	≧25
13	thermal shock resistance	℃	Room temperature~800	Room temperature~800	Room temperature~600	Room temperature~350
14	Maximum operating temperature	℃	≦1300	≦1400	≦1500	≦1500
15	Acid resistance		sure	good	very good	very good
16	Alkali resistance		commonly	sure	good	very good
17	Degree of difficulty in metallization		easily	Can do	Difficult to do	It's hard to do
18	Air tightness	Pa•m³/s	≦1×10^-11	≦1×10^-11	≦1×10^-10	≦1×10^-9

Application area

Electrical equipment

key word:

AlN Structural Parts

CONTACT

Add:No.228, Zhujiang South Road, Tianyuan District, Zhuzhou City, Hunan Province

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