IHE

A makwaara silicon carbide (SiC) dị ka carborundum, nke e ji ájá quartz, petroleum coke (ma ọ bụ coal coke), osisi chips (nke a ga-agbakwunye mgbe a na-emepụta silicon carbide akwụkwọ ndụ akwụkwọ ndụ) na ihe ndị ọzọ mee. Silicon carbide nwekwara mineral a na-adịghị ahụkebe n'okike, mulberry. N'oge a, C, N, B na ihe ndị ọzọ na-adịghị oxide dị elu na-eme ka ọ dị nro, silicon carbide bụ otu n'ime ihe ndị a na-ejikarị eme ihe ma na-echekwa ego, nke a pụrụ ịkpọ ájá ígwè ọlaedo ma ọ bụ ájá na-adịghị emegharị ahụ. Ugbu a, mmepụta ụlọ ọrụ China nke silicon carbide kewara n'ime carbide ojii silicon na carbide silicon akwụkwọ ndụ akwụkwọ ndụ, ha abụọ bụ kristal hexagonal nke nwere oke nke 3.20 ~ 3.25 na obere ike nke 2840 ~ 3320kg/m²

A na-ekewa ngwaahịa silicon carbide n'ọtụtụ ụdị dịka gburugburu ebe a na-eji ya eme ihe. A na-ejikarị ya eme ihe n'ụzọ igwe. Dịka ọmụmaatụ, silicon carbide bụ ihe kacha mma maka mkpuchi silicon carbide mechanical n'ihi ezigbo iguzogide nchara kemịkalụ, ike dị elu, ike siri ike dị elu, ezigbo iguzogide iyi, obere ihe esemokwu na oke okpomọkụ.

Enwere ike kewaa mgbaaka SIC Seal n'ime mgbanaka static, mgbanaka na-agagharị agagharị, mgbanaka dị larịị na ndị ọzọ. Enwere ike ịmepụta SiC silicon n'ime ngwaahịa carbide dị iche iche, dịka mgbanaka rotary silicon carbide, oche silicon carbide, osisi silicon carbide, na ndị ọzọ, dịka ihe ndị ahịa chọrọ si dị. Enwere ike iji ya na ihe graphite, ọnụọgụ esemokwu ya pere mpe karịa seramiiki alumina na alloy siri ike, yabụ enwere ike iji ya na uru PV dị elu, ọkachasị n'ọnọdụ acid siri ike na alkali siri ike.

Mbelata esemokwu nke SIC bụ otu n'ime uru dị na iji ya eme ihe na akara igwe. Ya mere, SIC nwere ike iguzogide mmebi na ndọda karịa ihe ndị ọzọ, na-agbatị ndụ nke akara ahụ. Na mgbakwunye, mbelata esemokwu nke SIC na-ebelata mkpa maka mmanụ. Enweghị mmanụ na-ebelata ohere nke mmetọ na nchara, na-eme ka arụmọrụ na ntụkwasị obi dịkwuo mma.

SIC nwekwara ezigbo iguzogide iyi. Nke a na-egosi na ọ nwere ike idi ojiji na-aga n'ihu na-emebighị emebi ma ọ bụ na-agbaji. Nke a na-eme ka ọ bụrụ ihe zuru oke maka ojiji ndị chọrọ nnukwu ntụkwasị obi na ogologo oge.

Enwere ike imegharị ya ma hichaa ya ka e wee nwee ike imegharị ihe mkpuchi ahụ ọtụtụ ugboro n'oge ndụ ya niile. A na-ejikarị ya eme ihe n'ụzọ igwe, dịka na ihe mkpuchi igwe maka ezigbo iguzogide nchara kemịkalụ ya, ike dị elu, ike siri ike dị elu, ezigbo ike iyi, obere ihe mgbochi esemokwu na oke okpomọkụ.

Mgbe ejiri ya maka ihu mkpuchi igwe, silicon carbide na-eme ka arụmọrụ ka mma, na-eme ka ndụ mkpuchi dịkwuo elu, na-ebelata ọnụ ahịa mmezi, na-ebelata ọnụ ahịa ọrụ maka akụrụngwa na-agbagharị dịka turbines, compressors, na centrifugal pumps. Silicon carbide nwere ike inwe ihe dị iche iche dabere na otu esi emepụta ya. A na-emepụta silicon carbide ejiri mmeghachi omume jikọta site na ijikọ ihe silicon carbide na ibe ha na usoro mmeghachi omume.

Usoro a anaghị emetụta ọtụtụ ihe ndị dị na anụ ahụ na okpomọkụ nke ihe ahụ nke ukwuu, mana ọ na-ebelata ike iguzogide kemịkal nke ihe ahụ. Kemịkalụ ndị a na-ahụkarị bụ caustics (na kemịkalụ pH ndị ọzọ dị elu) na asịd siri ike, ya mere ekwesighi iji silicon carbide nke nwere njikọ mmeghachi omume na ngwa ndị a.

A na-etinye ihe ndị e ji mee mmeghachi omume n'ime mmirisilicon carbide. N'ime ihe dị otú ahụ, a na-ejupụta oghere nke ihe SIC mbụ n'usoro nke ịbanye n'ime mmiri site n'ịgba silicon ígwè ọkụ, si otú a SiC nke abụọ na-apụta ma ihe ahụ na-enweta ihe pụrụ iche nke igwe, na-aghọ ihe na-eguzogide iyi. N'ihi obere mbelata ya, enwere ike iji ya na mmepụta nke akụkụ buru ibu na mgbagwoju anya nwere oke nnabata. Agbanyeghị, ọdịnaya silicon na-ebelata oke okpomọkụ ọrụ ruo 1,350 °C, iguzogide kemịkalụ na-ejedebekwa na ihe dị ka pH 10. A naghị akwado ihe ahụ maka ojiji na gburugburu alkaline siri ike.

SinteredA na-enweta silicon carbide site n'itinye granulate SIC dị mma nke e tinyere na ya n'okpomọkụ nke 2000 °C iji mepụta njikọ siri ike n'etiti mkpụrụ nke ihe ahụ.
Nke mbụ, eriri ahụ na-eme ka ọ sie ike, mgbe ahụ, oghere ahụ na-ebelata, n'ikpeazụkwa, njikọ dị n'etiti ihe na-eme ka mkpụrụ osisi ghara ịdị ike. N'ime usoro nhazi dị otú ahụ, mbelata dị ukwuu nke ngwaahịa ahụ na-eme - ihe dị ka pasentị iri abụọ.
Mgbaaka akara SSIC ọ na-eguzogide kemịkalụ niile. Ebe ọ bụ na silicon ọla adịghị na nhazi ya, enwere ike iji ya na okpomọkụ ruru 1600C na-enweghị mmetụta ike ya.