Ubushyuhe bwo kongera gushyushya insinga ya molybdenum ya lanthanum buri hejuru ugereranyije n'insinga ya molybdenum yonyine, kandi ni ukubera ko ingano nto ya La2O3 ishobora kunoza imiterere n'imiterere y'insinga ya molybdenum. Byongeye kandi, ingaruka za La2O3 ku cyiciro cya kabiri zishobora kongera ubushyuhe bw'icyumba cy'insinga ya molybdenum no kongera ubushyuhe bw'icyumba nyuma yo kongera gushyushya insinga.
Igereranya ry'ubushyuhe bwo kongera gushyuha: Imiterere mito y'insinga ya molybdenum y'umwimerere yagutse ku bushyuhe bwa 900 ℃ hanyuma yongera gushyuha ku bushyuhe bwa 1000 ℃. Uko ubushyuhe bwo kongera gushyuha, imbuto zo kongera gushyuha nazo zirazamuka, kandi ingirabuzimafatizo za fibrous ziragabanuka cyane. Iyo ubushyuhe bwo kongera gushyuha bugeze kuri 1200 ℃, insinga ya molybdenum iba yongeye gushyuha burundu, kandi imiterere yayo mito igaragaza imbuto zo kongera gushyuha zihuye neza. Uko ubushyuhe bwiyongera, imbuto zikura zitangana kandi zisa n'izikomeye. Iyo yongerewe ku bushyuhe bwa 1500 ℃, insinga ya molybdenum yoroshye kuyimena, kandi imiterere yayo igaragaza imbuto zoroshye. Imiterere ya fibre y'insinga ya molybdenum ya lanthanum yagutse nyuma yo kongera gushyuha ku bushyuhe bwa 1300 ℃, kandi imiterere isa n'iy'amenyo yagaragaye ku rugabano rwa fibre. Ku bushyuhe bwa 1400 ℃, insinga zo kongera gushyuha zagaragaye. Ku bushyuhe bwa 1500 ℃, imiterere ya fibre yaragabanutse cyane, kandi imiterere ya recrystallized yagaragaye neza, kandi ibinyampeke byakuze bitangana. Ubushyuhe bwa recrystallization bw'insinga ya molybdenum ya lanthanum-doped ni bwinshi kurusha ubw'insinga ya molybdenum yonyine, ahanini biterwa n'ingaruka z'uduce twa La2O3 two mu cyiciro cya kabiri. Icyiciro cya kabiri cya La2O3 kibangamira kwimuka kw'imipaka y'ibinyampeke no gukura kw'ibinyampeke, bityo byongera ubushyuhe bwa recrystallization.
Igereranya ry'Imiterere y'Ubushyuhe bw'Icyumba: Uburebure bw'insinga ya molybdenum y'umwimerere buriyongera uko ubushyuhe bwo gufunga bugenda bwiyongera. Iyo ubushyuhe bw'insinga bugeze kuri 1200 ℃, uburebure bugera ku gaciro ntarengwa. Uburebure bugabanuka uko ubushyuhe bw'insinga bugenda bwiyongera. Ifite ubushyuhe bwa 1500 ℃, kandi uburebure bwayo bungana na zeru. Uburebure bw'insinga ya molybdenum ya La-doped busa n'insinga ya molybdenum y'umwimerere, kandi igipimo cyo gufunga kigera ku ntarengwa iyo ifatanye kuri 1200 ℃. Hanyuma uburebure bugabanuka uko ubushyuhe bwiyongera. Igitandukanye gusa ni uko igipimo cyo kugabanya kigenda buhoro. Nubwo uburebure bw'insinga ya molybdenum ya lanthanum igabanywa nyuma yo gufunga kuri 1200 ℃, uburebure buri hejuru ugereranyije n'insinga ya molybdenum y'umwimerere.
Igihe cyo kohereza ubutumwa: Ukuboza 19-2021