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Na apo seramika alumina

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Na apo seramika alumina

 

ʻO Alumina Ceramic ka mea i hoʻohana nui ʻia.Loaʻa iā ia ke kūpaʻa ʻaʻahu kiʻekiʻe, ka ikaika mechanical kiʻekiʻe, ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa haʻalulu maikaʻi, ka insulation uila maikaʻi loa.Hoʻohana maʻamau ia no nā insulators uila, ʻaʻahu i nā ʻāpana pale, nā ʻāpana seramika no ka umu wela wela a me nā mea ʻē aʻe. ʻokoʻa e like me ia.Hāʻawi ka ʻoihana Leap i kahi maʻemaʻe ʻē aʻe Ceramic i hiki ke kūpono no nā wahi noi koi ʻokoʻa.


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FAQ

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kalima-lima(1)

 

Nā ʻāpana ʻenehana

Nā palena hana Units ʻAlumina Keramika ʻAlumina Keramika
Mea alumina wt% ≥ 99 ≥ 95
Volume Density g /cm3 3.85 3.7
Paʻakiki (HRA) HRA ≥ 88 86
Ka ikaika hoʻopili MPa ≥ 400 300
Mahana Kiekie 1500 1500
Hoao Paa Lewa   Holo Holo
Ho'āʻo Haʻalulu Wela   Holo Holo
Coefficient o ka Hoonui Wela ×10-6/℃ 8.2 7.5
Dielectric mau εr20 ℃, 1MHz 9.2 9
Nalo Dielectric tanδ×10-4, 1MHz 2 3
Kū'ē Volume Ω·cm 20 ℃ 1014 1013
Ka ikaika o ke kuʻi KV/mm , DC≥ 20 20
ʻAka-kūʻē mg/cm2 ≤ 0.7 7
Alkali-kūpaʻa mg/cm2 ≤ 0.1 0.2
Kūʻē abrasion g/cm2 ≤ 0.1 0.2
Ka ikaika hoʻopili M Pa ≥ 2800 2500
Ikaika Flexural M Pa ≥ 350 200
Elastic Modulus G Pa 350 300
Ka ratio o Poisson   0.22 0.2
ʻO ka hoʻoili wela W/m·K(20 ℃) 25 20

 

 


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