Alumina, ma ọ bụ Aluminom Oxide, nwere ike imepụta n'ụdị dị ọcha.Akara ule a na-eji maka ngwa ụlọ ọrụ ọgbara ọhụrụ bụ 99.5% ruo 99.9% yana mgbakwunye emebere iji kwalite akụrụngwa.Enwere ike itinye usoro nhazi seramiiki dị iche iche gụnyere machining ma ọ bụ ụgbụ na-akpụpụta iji mepụta nha na ụdị dị iche iche nke akụrụngwa.
Al2O3 ceramics nwere uru ndị a:
1. Isi ike dị elu (MOHS hardness bụ 9) na ihe mgbochi dị mma.
2. Ike igwe dị mma.Ọ na-ehulata ike nwere ike ruo 300 ~ 500MPa.
3. Nguzogide okpomọkụ dị mma.Ọ na-aga n'ihu na-arụ ọrụ okpomọkụ nwere ike ruo 1000 ℃.
4. High resistivity na ezigbo ihe mkpuchi ọkụ eletrik.Karịsịa na ihe mkpuchi okpomọkụ dị elu dị mma (Resistance okpomọkụ nke ime ụlọ bụ 1015Ω•cm) na nkwụsị nke voltaji (ike mkpuchi bụ 15kV / mm).
5. Ezi nkwụsi ike nke kemịkal.Ọ naghị emeghachi omume na sulfuric acid, hydrochloric acid, nitric acid na hydrofluoric acid.
6. Nguzogide corrosion okpomọkụ dị elu.Ọ nwere ike ka mma iguzogide nbibi nke ọla a wụrụ awụ dị ka Be, Sr, Ni, Al, V, Ta, Mn, Fe na Co.
Ya mere, a na-eji seramiiki alumina eme ihe n'ọtụtụ ebe na ụlọ ọrụ mmepụta ihe nke oge a.A na-ejikarị eme ihe na ụlọ ọrụ mmepụta ihe semiconductor, ụlọ ọrụ eletrọnịkị, ụlọ ọrụ igwe, gburugburu ebe okpomọkụ dị elu, ụlọ ọrụ kemịkalụ, ụlọ ọrụ ọkụ, textile na ubi ndị ọzọ.
Alumina bụ ihe seramiiki a na-ejikarị na ngwa ndị a:
✔ ihe mkpuchi eletriki, ihe ndị na-eguzogide corrosion maka lasers gas, maka ngwa nhazi semiconductor (dịka chuck, end effector, ring ring)
✔ eletriki insulators maka elektrọn tubes.
✔ Akụkụ nhazi maka akụrụngwa dị elu na akụrụngwa cryogenic, ngwaọrụ radieshon nuklia, akụrụngwa eji na oke okpomọkụ.
✔ Akụkụ corrosion-eguzogide, piston maka nfuli, valves na usoro dosing, ịlele valves ọbara.
✔ tubes thermocouple, ọkụ eletrik, mgbasa ozi egweri, ntuziaka eri.
Oge nzipu: Jul-14-2023