Ka pale oxidation o ka huʻa keleawe i loko o nā kapuahi sintering

ʻO ke kumuhuʻa keleaweʻaʻole oxidize
ʻO ka pahu keleawe he mea porous i hana ʻia mai ka hui ʻana o ke keleawe metala a me kahi mea hoʻohāhā i luna, i kālua ʻia a hoʻonui ʻia i nā wela kiʻekiʻe. I loko o ka umu sintering, maʻalahi ka hoʻoheheʻe ʻana i ka ʻūhā keleawe i ka lewa no ka mea hiki i nā molekala oxygen ke komo i loko o ka huʻa ma o nā pores foam a hana pū me ke keleawe e hana i ke keleawe keleawe. Eia nō naʻe, aia ka nui o nā pores kinoea i loko o ka pahu keleawe, a hiki i kēia mau pores kino ke kipaku aku i nā molekele oxygen mai ka ʻōpū o loko, no laila e ʻike ai i ka hopena o ka non-oxidation.
Na Hana Hoomalu
ʻOiai he nui nā pores kinoea i loko o kahuʻa keleawe, inā ʻaʻole kūpono ka lewa i loko o ka umu ahi e alakaʻi mau ia i ka oxidation. No laila, i loko o ka umu sintering, i mea e pale ai i ka ʻūhā keleawe mai ka oxidation, pono e lawe ʻia kēia mau hana:
1. Hoʻomalu i ka lewa kahe: E hoʻomalu i ka lewa redox i loko o ka umu sintering ma ka hoʻoponopono ʻana i ka mana redox thermal. I waena o lākou, e hoʻolōʻihi ka lewa oxidizing i ka oxidation o ka pahu keleawe, no laila pono e hōʻemi i ka ʻike o ka oxygen a hoʻonui i ka ʻike o ka hoʻemi ʻana i ke kinoea.
2. ʻO ka uhi ʻana i ka ʻili o ka mea pale: uhi i kahi papa o ka mea pale ma ka ʻili ohuʻa keleawehiki ke pale pono i ka oxidation. ʻO nā mea pale i hoʻohana pinepine ʻia he ʻaila silika, ka pauka carbon sintered, alumini oxide a pēlā aku. Ma waena o lākou, hiki i ka alumina ke hana i kahi papa o ke kiʻi alumina paʻa e pale i ka hopena oxygen hou.
ʻO ke kumu o ke kumu o ka oxidize copper foam i loko o ka umu sintering, ʻo ia ka nui o nā pores kinoea i loko, hiki ke hoʻokuʻu aku i nā molekole oxygen mai loko mai o ka pahu. I mea e pale ai i ka huʻi keleawe, pono e hoʻomalu i ka lewa kahe i loko o ka umu sintering a e uhi i kona ʻili me nā mea pale a me nā ana ʻē aʻe.