Cubic Silicon Carbide Whiskersbụ elu-ike afụ ọnụ-ụdị (otu akụkụ) monolithic, nke nwere ọtụtụ magburu onwe n'ibu Njirimara dị ka elu-ike na elu ụdị.A na-eji ya eme ihe n'ọtụtụ ebe na ihe ndị mejupụtara ígwè na seramiiki.A na-ejikarị ya eme ihe na ihe ndị dị elu na-ekpo ọkụ n'ọhịa nke ngwá ọrụ seramiiki, oghere nke oghere, ibu, nnukwu nfuli apịtị, wdg.

Njirimara anụ ahụ: Ọ bụ ụdị kristal cubic, nke bụ otu ụdị kristal dị ka diamond.

Njirimara kemịkalụ: mgbochi iyi, oke okpomọkụ na-eguzogide, ọkachasị nguzogide ujo, nguzogide corrosion, nguzogide radieshon.

Ngwa: elu-ọgwụgwụ seramiiki ibu, ebu, elu-voltage firing, elu okpomọkụ iguzogide, wdg.

Silicon carbide nwere usoro kristal diamond.Nke a bụ n'ihi ihe carbon na silicon nke na-etolite SiC.Ha bụ nke SP element nke IVA na tebụl okirikiri mmewere.Mgbe ihe ndị a na-etolite kristal nnukwu nkwụsi ike SP3 na-ahazi, enwere igodo covalent siri ike, njirimara ọnụahịa nkịtị na ike dị elu nke igodo ahụ, na-ekpebi na silicon carbide nwere ụfọdụ ike na ike n'ibu.Isi ike nke SIC's MOBS ruru 9.5, nke abụọ naanị diamond.Cubic SiC whiskers nwere ike dị elu, modulus, ike tensile na nguzogide okpomọkụ dị elu karịa ihe ndị ọzọ.

A na-ekesa whiskers SiC n'otu n'otu n'ime ihe ahụ dị oke dị ka akụkụ nke abụọ, nke nwere ike dabara na ahụ nke ọma.Mgbe elu okpomọkụ na-etolite, n'ihi na thermal mgbasa ọnụọgụ nke crystal na ahụ ihe dị iche iche, kristal na ahụ ihe interface interface Mgbe njuputa nrụgide na-eme, mgbe ihe mejupụtara ihe bụ ubé cracks, nrụgide nke mgbape. njedebe na-agbatị na kristal na matrix interface.Na-etinye nrụgide mpụga.N'ụzọ dị otú a, whiskers SiC nwere ike igbochi mgbasawanye nke micro-cracks site na "bridge couplet", "crack deflection", "crystal pull out effects" na "mmetụta kristal gbajiri agbaji", si otú ahụ na-eme ka ahụ dịkwuo elu ma na-ewusi ahụ ike.Ngwakọta ihe mejupụtara nwere nnukwu ike na akụrụngwa akụrụngwa.N'ihi na kristal SIC ga-enwerịrị ezigbo nkwụsi ike na oke okpomọkụ, ihe mejupụtara ya na-emewanyewanye ma sie ike ka nwere ike ịnọgide na-enwe ezigbo akụrụngwa mgbe 1000 Celsius C karịa 1000 Celsius.

 

Cubic Silicon Carbide Whiskersenwere ike iji ya dị ka ihe emelitere na matriks rọba, matrix metal ma ọ bụ mkpụrụ seramiiki iji welie ma wusie ike.Ntuziaka okpomọkụ dị elu, ihe mkpuchi dị elu nke ihe SIC, ihe ntinye maka nnukwu sekit jikọtara ọnụ na ụlọ ọrụ eletrọnịkị na ihe ngwugwu.Dị ka ozi ngwa anya ihe, ọ nwere nnukwu ngwa uru na ubi nke TV ngosi, nkwurịta okwu ọgbara ọhụrụ, na netwọk.

Carbonic silicon carbide whisker bụ ihe nkwalite dị oke mma maka ọla, seramiiki, na polymer polymer base composite.


Oge nzipu: Ọktoba 25-2022

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