ʻO nā mea hana i uhi ʻia i ka ikaika a me ka paʻakikī carbide a i ʻole ke kila kiʻekiʻe (
ʻO nā seramika, daimana a me cubic boron nitride mau mea paʻa loa e like me nā pahi pahi hiki nō hoʻi)
Ma luna o ka ʻili, e hoʻohana ana i ke ʻano o ka hoʻoheheʻe ʻana i ka mahu e uhi i kahi ʻāpana o ka metala refractory a i ʻole ka hui nonmetal a me ka hoʻomākaukau.
ʻO ka uhi ʻana ma ke ʻano he pale kemika o ka mea ʻoki a me ka pale wela, hiki ke hōʻemi i ka diffusion a me ka hopena kemika ma waena o ka mea ʻoki a me ka mea hana, a laila e hōʻemi i ka matrix o ka lole a me ka waimaka, i mea e hoʻomaikaʻi ai i ke ola lawelawe o nā mea ʻoki.
He kiʻekiʻe ka paʻakikī o ka ʻili a me ka pale ʻana o nā mea hana i uhi ʻia, nā waiwai kemika paʻa, ke kūpaʻa maikaʻi o ka wela i ka oxidation, ka mea haʻahaʻa haʻahaʻa haʻahaʻa a me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, hiki ke hōʻemi i ke ʻano adhesion, ʻaʻole maʻalahi ka hana ʻana i ka devolop tumor etc. ʻoi aku ka maʻalahi ma mua o ke ola ʻoki ʻole ʻole a me ka wikiwiki o ka ʻoki ʻana, hiki ke hōʻemi i ka nalowale o ka mea ʻoki.
E māhele ʻia nā mea hana i uhi ʻia i ʻehā mau ʻano: nā mea hana kila kiʻekiʻe, nā mea hana ʻoki carbide i uhi ʻia, a me nā seramika a me nā mea paʻa loa (
Diamond a cubic boron nitride)
ʻO ka maka ma nā mea hana i uhi ʻia.
Akā ma mua o ʻelua mau ʻano mea hana i uhi ʻia e hoʻohana i ka hapa nui.
I nā seramika a me nā mea paʻakikī paʻakikī loa ma ka lau, ʻoi aku ka paʻakikī ma mua o nā mea matrix, ʻo ke kumu ka hoʻomaikaʻi ʻana i ka paʻakikī o ka ʻili o ka ʻili (
Hiki ke hoʻonui ma mua o 10%)
, hiki ke ho'ēmi i ka lihi o ka maka a me ka pōʻino, hoʻonui i ka laulā o ka noi.
