ʻO ka polycrystalline Al2O3 alumina ceramics i hoʻopilikino ʻia i ke kūpaʻa ʻana o ka wela kiʻekiʻe

Aluminum oxide ceramics hana

1--Oolea kiekie

ʻO ka paʻakikī Rockwell o nā alumina keramika ʻo HRA80-90, ka lua wale nō i ka daimana i ka paʻakikī, ʻoi aku ka nui ma mua o ke kila a me ke kila kila.

2--Pae ke komo maikai

ʻO ka pale ʻana o ka alumina seramics e like me 266 mau manawa o ke kila manganese a me 171.5 mau manawa o ka hao chromium kiʻekiʻe. Ma lalo o nā kūlana hana like, hiki iā ia ke hoʻonui i ke ola lawelawe o nā mea hana ma kahi o ʻumi mau manawa.

3--Mamāmā

ʻO ka nui o nā alumina ceramics he 3.7 ~ 3.95g / cm °, he hapalua wale nō ia o ka hao a me ke kila, a hiki ke hoʻemi nui i ka ukana o nā mea hana.

4--Akea o ka noi

Hoʻohana nui ʻia nā seramika alumina i nā mīkini, fiber optics, ʻoki ʻoki, lāʻau lapaʻau, meaʻai, kemika, aerospace a me nā māla ʻē aʻe.

ʻO nā pono o ka alumina ceramics:

1--He mau waiwai insulating maikaʻi nā alumina seramika. ʻOi aku ka liʻiliʻi o ka poho kiʻekiʻe, a maikaʻi ka insulation kiʻekiʻe.

2--Alumina ceramics he wela ka wela, liʻiliʻi coefficient o thermal hoʻonui, kiʻekiʻe mechanical ikaika a me ka maikai thermal conductivity.

3--Alumina ceramics loaʻa ke kūʻē kemika a me ka hoʻoheheʻe metala.

4--ʻAʻole hiki ke puhi ʻia nā seramika alumina, ʻaʻole maʻalahi i ka ʻōpala a ikaika a ʻaʻole maʻalahi e hōʻino, me nā mea kūlohelohe a me nā mea metala ʻaʻole hiki ke hoʻohālikelike ʻia me ka maikaʻi maikaʻi loa.

5--Alumina ceramics ʻoi aku ka maikaʻi o ka pale ʻana, ka paʻakikī a me ka corundum like, hiki ke hōʻea i ka paʻakikī Mohs 9, hiki ke hoʻohālikelike ʻia kona pale ʻana me nā alloys paʻakikī.