Ngwa nke scandium oxide
Usoro kemịkalụ nke scandium oxide bụ Sc2O3. Njirimara: White siri ike. N'usoro cubic nke obere ụwa sesquioxide. Njupụta 3.864. Ebe mgbaze 2403℃ 20℃. Na-adịghị edozi na mmiri, soluble na ọkụ acid. A na-akwado ya site na ire ere nke nnu scandium. Enwere ike iji ya dị ka ihe evaporation maka mkpuchi semiconductor. Mee laser siri ike nke nwere ogologo wavelength agbanwe, egbe eletrọn TV dị elu, oriọna halide metal, wdg.
Scandium oxide (Sc2O3) bụ otu n'ime ngwaahịa scandium kacha mkpa. Ngwongwo anụ ahụ na kemịkal ya yiri nke oxides ụwa na-adịghị ahụkebe (dịka La2O3, Y2O3 na Lu2O3, wdg), ya mere usoro mmepụta ihe eji eme ihe yiri ya. Sc2O3 nwere ike ịmepụta Scandium metal (sc), nnu dị iche iche (ScCl3, ScF3, ScI3, Sc2 (C2O4) 3, wdg) na ihe dị iche iche scandium alloys (Al-Sc, Al-Zr-Sc series). Ngwaahịa scandium ndị a nwere uru teknụzụ bara uru na mmetụta akụ na ụba dị mma.Sc2O3 ejirila ya mee ihe na alloy alloy, isi iyi ọkụ eletrik, laser, catalyst, activator, ceramics, aerospace na ihe ndị ọzọ n'ihi njirimara ya. Ka ọ dị ugbu a, a na-akọwa ọnọdụ ngwa nke Sc2O3 n'ọhịa nke alloy, ọkụ ọkụ eletrik, onye na-eme ihe, onye na-eme ihe na ceramics na China na ụwa ka e mesịrị.
(1) ngwa nke alloy
Ka ọ dị ugbu a, Al-Sc alloy mere nke Sc na Al nwere uru nke njupụta dị ala (SC = 3.0g / cm3, Al = 2.7g / cm3, ike dị elu, ike dị elu, plasticity dị mma, nguzogide corrosion siri ike na nkwụsi ike okpomọkụ, wdg. Ya mere, etinyere ya nke ọma n'akụkụ akụkụ nke ngwa agha, ikuku ikuku, ụgbọ elu, ụgbọ ala na ụgbọ mmiri, wee jiri nwayọọ nwayọọ tụgharịa gaa na ndị nkịtị, dị ka aka nke egwuregwu ngwaọrụ (hockey na baseball)Ọ nwere njirimara nke ike dị elu, nnukwu siri ike na ịdị arọ dị arọ, ma bara uru bara uru.
Scandium na-arụkarị ọrụ nke mgbanwe na nhazi ọka na alloy, nke na-eduga n'ịmepụta ụdị Al3Sc ọhụrụ nke nwere ihe ndị mara mma. Al-Sc alloy ewepụtala usoro nke usoro alloy, dịka ọmụmaatụ, Russia eruola ụdị 17 nke usoro Al-Sc, China nwekwara ọtụtụ alloys (dịka Al-Mg-Sc-Zr na Al-Zn-Mg-Sc). alloy). A pụghị iji ihe ndị ọzọ dochie àgwà nke ụdị alloy a, ya mere site n'echiche mmepe, mmepe ngwa ya na ikike ya dị ukwuu, a na-atụkwa anya na ọ ga-abụ nnukwu ngwa n'ọdịnihu. Dịka ọmụmaatụ, Russia nwere mmepụta mmepụta ihe ma mepụta ngwa ngwa maka akụkụ nhazi ọkụ, China na-eme ngwa ngwa nyocha na ngwa ya, karịsịa na mbara igwe na ụgbọ elu.
(2) ngwa nke ihe ọkụ ọkụ eletrik ọhụrụ
A gbanwere Sc2O3 dị ọcha ka ọ bụrụ ScI3, wee mee ka ọ bụrụ ihe ọkụ ọkụ eletrik ọhụrụ nke ọgbọ atọ na NaI, nke a na-edozi n'ime ọkụ ọkụ scandium-sodium halogen maka ọkụ (ihe dịka 0.1mg ~ 10mg nke Sc2O3≥99% ihe eji eme ihe maka oriọna ọ bụla. N'okpuru ọrụ nke nnukwu voltaji, akara nyocha nke scandium bụ acha anụnụ anụnụ na eriri sodium spectral bụ odo, na agba abụọ ahụ na-arụkọ ọrụ na ya. onye ọ bụla ọzọ na-emepụta ìhè nso na ìhè anyanwụ. The ìhè nwere uru nke elu luminosity, ezi ìhè agba, ike ịzọpụta, ogologo ndụ na ike foogu na-agbaji ike.
(3) Ngwa nke ihe laser
Enwere ike ịkwadebe Gadolinium gallium scandium garnet (GGSG) site na ịgbakwunye Sc2O3≥ 99.9% dị ọcha na GGG, ihe mejupụtara ya bụ ụdị Gd3Sc2Ga3O12. Ike ikuku nke ọgbọ nke atọ nke laser mere ya bụ okpukpu 3.0 dị elu karịa nke laser nwere otu olu, nke rurula ngwaọrụ laser dị elu na nke dị ntakịrị, mụbara ike mmepụta nke laser oscillation ma mee ka arụmọrụ nke laser dịkwuo mma. . Mgbe ị na-akwadebe otu kristal, ụgwọ ọ bụla bụ 3kg ~ 5kg, na ihe dịka 1.0kg nke akụrụngwa na Sc2O3≥99.9% na-agbakwunye. Ka ọ dị ugbu a, a na-eji ụdị laser a eme ihe na teknụzụ ndị agha, ma jiri nwayọọ nwayọọ na-ebugharị ya na ụlọ ọrụ ndị nkịtị. Site n'echiche nke mmepe, ọ nwere ikike dị ukwuu na agha na ndị nkịtị n'ọdịnihu.
(4) ngwa nke ngwa eletrọnịkị
Dị ọcha Sc2O3 ike ga-eji dị ka ọxịdashọn cathode activator maka cathode eletrọn egbe nke agba TV picture tube na ezi mmetụta. Fesa oyi akwa nke Ba, Sr na Ca oxide na ọkpụrụkpụ nke otu milimita na cathode nke tube agba, wee fesaa oyi akwa nke Sc2O3 nwere ọkpụrụkpụ nke 0.1 millimeter na ya. Na cathode nke oyi akwa oxide, Mg na Sr na-emeghachi omume na Ba, nke na-akwalite mbelata nke Ba, na electron ndị a tọhapụrụ na-arụsi ọrụ ike karị, na-enye nnukwu electrons dị ugbu a, nke na-eme ka phosphor na-egbuke egbuke. , ọ nwere ike ịbawanye njupụta dị ugbu a site na ugboro anọ, mee ka foto TV doo anya ma mee ka ndụ cathode dị ogologo oge 3. Ọnụ ego nke Sc2O3 ejiri maka 21-inch nke na-emepe emepe cathode bụ 0.1mg Ugbu a, a na-eji cathode a na mba ụfọdụ n'ụwa, dị ka Japan, nke nwere ike imeziwanye asọmpi ahịa na ịkwalite ire ahịa nke ihe nkiri TV.
Oge nzipu: Ọgọst-10-2021