ʻO ka ikaika wela kiʻekiʻe o nā seramika

Aia ʻo Deqing Yehui Ceramic Parts Manufacture Co., Ltd. ma Deqing county, Huzhou City, ZheJiang Province, Kina.Ma kahi o 200km ka mamao mai ke awa ʻo Shanghai, ʻoihana mākou i ka hana ʻana i nā ʻāpana Zirconia Ceramics a me Alumina Ceramic me 10 mau makahiki.

ʻOi aku ka maikaʻi o ke kūpaʻa wela kiʻekiʻe o nā ceramics, ʻoi aku ka maʻamau ma lalo o 800 ° C, a he liʻiliʻi ka hopena o ka mahana i ka ikaika o nā mea seramika.Hoʻohālikelike ʻia me ka covalent bond ceramics, ʻoi aku ka maikaʻi o ka pale ʻana i ka wela kiʻekiʻe.ʻO ka ʻōlelo maʻamau, ma ke ʻano haʻahaʻa haʻahaʻa haʻahaʻa, ʻo ka haʻihaʻi ʻole o nā seramika he ʻano brittle, ʻo ia hoʻi, ʻaʻohe deformation plastic, a ʻo ke koʻikoʻi hope loa he liʻiliʻi loa, a he maʻalahi loa ia i nā hemahema liʻiliʻi.Eia nō naʻe, ma ka ʻāpana wela kiʻekiʻe, hiki i nā seramika ke hana i ka deformation plastic liʻiliʻi ma mua o ka haki ʻana, hoʻonui nui ʻia ke koʻikoʻi hope loa, a aia kahi ʻano elastoplastic liʻiliʻi.Eia kekahi, ʻokoʻa ka naʻau o ka ikaika i nā hemahema.ʻO ka palena ma waena o ka ʻāpana wela haʻahaʻa a me ka ʻāpana wela kiʻekiʻe e hoʻololi ai i kēia waiwai waiwai i kapa ʻia ʻo ka brittle ductility transition temperature.Pili loa ka mahana hoʻololi ductility i ka haku mele mele a me ke ʻano o ka pilina valence.E pili ana, akā pili pū i ka microstructure o ka ceramic, ka haku ʻana o ka pae palena palaoa, ʻoi aku ka hoʻohui ʻana a me ka ʻike o ka pae aniani palena palaoa.Ma nā wela kiʻekiʻe, ma luna o ka brittle ductility transition temperature, e emi ana ka ikaika o ka hapa nui o nā mea seramika.No ka MgO i hoʻopaʻa ʻia i ka ion, ʻo ka brittle ductility transition temperature he haʻahaʻa loa, a ke emi nei ka ikaika me ka piʻi ʻana o ka wela kokoke mai ka wela lumi.ʻO ka brittle ductility transition temperature o Al2O3 ma kahi o 900 ° C, ʻo ka brittle ductility transition temperature o ka wela-press sintered Si3N4 ma kahi o 1200 ° C, a hiki i nā ceramics SiC ke kū pinepine i nā mahana kiʻekiʻe o 1600 ° C.