Usoro mmepụta nke silikọn carbide na-emegharị mmeghachi omume

Carbide silicon nke a na-esi n'ime ihe na-eme ka ihe dị n'ime ihe dị mkpa, nwere ike dị elu, ike dị elu, ike dị elu, ike dị elu, ike nchara na oke iguzogide oxidation na ihe ndị ọzọ dị mma, a na-ejikarị ya eme ihe n'ọtụtụ ebe n'ime igwe, ụgbọ elu, ụlọ ọrụ kemịkalụ, ike na mpaghara ndị ọzọ.

 

1. Nkwadebe ihe eji emepụta ihe

Nkwadebe nke ihe eji emepụta sintering silicon carbide bụ isi ihe eji emepụta sintering silicon carbide, nke enwere ike iji ọtụtụ ihe nwere carbon, dị ka coal coke, graphite, coal, wdg., a na-ahọrọkarị ntụ silicon site na nha ihe dị n'ime ya nke 1-5μm dị ọcha. Nke mbụ, a na-agwakọta ntụ carbon na silicon n'otu oke, na-agbakwunye oke ihe na-ejikọta ihe na mmiri, ma na-agwakọta ya nke ọma. A na-etinye ngwakọta ahụ n'ime igwe igwe bọọlụ maka igwe bọọlụ iji mee ka ngwakọta na igwe egweri ya n'otu ụzọ ahụ ruo mgbe nha ihe dị n'ime ya erughị 1μm.

2. Usoro ịkpụzi

Usoro ịkpụzi ihe bụ otu n'ime usoro dị mkpa n'ịmepụta silicon carbide. Usoro ịkpụzi ihe a na-ejikarị eme ihe bụ ịpị ịkpụzi ihe, ịkpụzi ihe na ịkpụzi ihe na ịkpụzi ihe na-anaghị agbanwe agbanwe. Ịkpụzi ihe na-egosi na a na-etinye ngwakọta ahụ n'ime ebu ma mepụta ya site na nrụgide igwe. Ịkpụzi ihe na-egosi ịgwakọta ngwakọta ahụ na mmiri ma ọ bụ ihe mgbaze organic, ịgbanye ya n'ime ebu ahụ site na sirinji n'okpuru ọnọdụ ikuku, na ịmepụta ngwaahịa emechara mgbe ọ kwụsiri ike. Ịkpụzi ihe na-anaghị agbanwe agbanwe na-ezo aka na ngwakọta ahụ n'ime ebu ahụ, n'okpuru nchebe nke oghere ma ọ bụ ikuku maka ịkpụzi ihe na-anaghị agbanwe agbanwe, na-abụkarị na nrụgide nke 20-30MPa.

3. Usoro ịsacha ihe

Ịsa ihe bụ isi ihe dị mkpa n'usoro mmepụta nke silikọn carbide e ji mmeghachi omume mee. Okpomọkụ ịsa ihe, oge ịsa ihe, ikuku ịsa ihe na ihe ndị ọzọ ga-emetụta arụmọrụ nke silikọn carbide e ji mmeghachi omume mee. N'ozuzu, okpomọkụ ịsa ihe nke silikọn carbide e ji mmeghachi omume mee dị n'etiti 2000-2400℃, oge ịsa ihe bụkarị awa 1-3, ikuku ịsa ihe na-abụkarịkwa nke na-adịghị arụ ọrụ, dị ka argon, nitrogen, na ndị ọzọ. N'oge ịsa ihe, ngwakọta ahụ ga-enweta mmeghachi omume kemịkalụ iji mepụta kristal silikọn carbide. N'otu oge ahụ, kabọn ga-emekwa mmeghachi omume na gas dị na ikuku iji mepụta gas dịka CO na CO2, nke ga-emetụta njupụta na ihe onwunwe nke silikọn carbide. Ya mere, ịnọgide na-enwe ikuku ịsa ihe kwesịrị ekwesị na oge ịsa ihe dị oke mkpa maka imepụta silikọn carbide e ji mmeghachi omume mee.

4. Usoro mgbe ọgwụgwọ gasịrị

Carbide silicon nke a na-akpọ sintered na mmeghachi omume chọrọ usoro ọgwụgwọ mgbe emechara ya. Usoro ọgwụgwọ mgbe emechara ya bụ igwe, igwecha, ịchacha, ịchacha na ihe ndị ọzọ. Emebere usoro ndị a iji melite nkenke na ịdị mma elu nke carbide silicon nke a na-akpọ sintered. N'ime ha, usoro ịkpụcha na ịchacha bụ usoro nhazi a na-ejikarị eme ihe, nke nwere ike ime ka njedebe na ịdị larịị nke elu silicon carbide dịkwuo mma. Usoro ịchacha nwere ike ịmepụta oyi akwa oxide iji mee ka iguzogide oxidation dịkwuo mma na nkwụsi ike kemịkalụ nke carbide silicon nke a na-akpọ sintered na mmeghachi omume dịkwuo mma.

Na nkenke, imepụta silikọn carbide nke na-emegharị ahụ bụ usoro dị mgbagwoju anya, ọ dị mkpa ịmụta ọtụtụ teknụzụ na usoro dị iche iche, gụnyere nkwadebe ihe eji arụ ọrụ, usoro ịkpụzi ihe, usoro sinki na usoro mgbe ọgwụgwọ gasịrị. Naanị site n'ịmụta teknụzụ na usoro ndị a nke ọma ka a ga-esi mepụta ihe silikọn carbide nke nwere mmeghachi omume dị elu iji gboo mkpa nke ubi ngwa dị iche iche.