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Awọn oruka seramiki aluminiomu

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Awọn oruka seramiki aluminiomu

 

Seramiki Alumina jẹ awọn ohun elo seramiki imọ-ẹrọ ti o gbajumo. O ni resistance yiya giga, agbara ẹrọ ti o ga, resistance otutu otutu, resistance mọnamọna gbona ti o dara, idabobo itanna to dara julọ. O ti wa ni maa n lo fun itanna insulators, wọ sooro awọn ẹya ara, seramiki awọn ẹya ara fun ga otutu ileru bbl Alumina seramiki le ṣee ṣe nipasẹ o yatọ si purities bi 95%, 96%, 99%, 99.5%, 99.7% ati be be lo, won ini yoo ni kekere. iyato accordingly. Ile-iṣẹ fifo pese oriṣiriṣi seramiki mimọ ohun ti o le baamu fun agbegbe ohun elo ibeere oriṣiriṣi.


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Imọ paramita

Awọn ifilelẹ Iṣiṣẹ Awọn ẹya Awọn ohun elo alumọni Awọn ohun elo alumọni
Alumina akoonu wt% ≥ 99 ≥ 95
Iwọn Iwọn didun g/cm3 3.85 3.7
Lile (HRA) HRA ≥ 88 86
Agbara Imudara MPa ≥ 400 300
Iwọn otutu ti o pọju 1500 1500
Idanwo Afẹfẹ   Kọja Kọja
Gbona mọnamọna igbeyewo   Kọja Kọja
Olùsọdipúpọ Of Heat Imugboroosi ×10-6/℃ 8.2 7.5
Dielectric Constant εr20℃, 1MHz 9.2 9
Dielectric Isonu tanδ × 10-4, 1MHz 2 3
Resistivity iwọn didun Ω·cm 20℃ 1014 1013
Puncture Agbara KV/mm, DC≥ 20 20
Acid-resistance mg/cm2 ≤ 0.7 7
Alka-sooro mg/cm2 ≤ 0.1 0.2
Abrasion Resistance g/cm2 ≤ 0.1 0.2
Agbara Imudara M Pa ≥ 2800 2500
Agbara Flexural M Pa ≥ 350 200
Modulu rirọ G Pa 350 300
Iye owo ti Poisson   0.22 0.2
Gbona Conductivity W/m·K(20℃) 25 20

 

 


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