Alpha-alumina ine yakagadzika makemikari zvimiro, corrosion resistance, high hardness, good insulation properties, high melting point and high toughness, uye inoshandiswa mundima dzakasiyana.
Kushandiswa kwea-alumina poda mumakeramiki
Microcrystalline alumina ceramics rudzi rutsva rweceramic zvinhu zvine yunifomu uye dense chimiro uye nano kana sub-micron saizi yezviyo.Iyo ine mabhenefiti epamusoro mechanicha simba, kupfeka kuramba, corrosion kuramba, oxidation kuramba, inogadziriswa yekuwedzera coefficient uye yakanaka yekudziya kugadzikana.Chinhu chayo chikuru ndechekuti iyo yekutanga crystal idiki.Naizvozvo, iyo inonyanya kukosha tekinoroji mamiriro ekugadzirira microcrystalline alumina ceramics ndeyekugadzirira α-Al2O3 poda ine diki yepakutanga crystal uye yakakwirira sintering basa.Iyi α-Al2O3 poda inogona kuve yakaomeswa neceramic muviri pane yakaderera sintering tembiricha.
Kushandiswa kwea-alumina poda mune refractory zvinhu
α-Al2O3 poda yakasiyana muzvinhu zvinoramba zvichienderana nekushandiswa, uye zvinodiwa zvehupfu zvakasiyanawo.Semuenzaniso, kana iwe uchida kukurumidza kuwedzera densification yezvinhu zvinoramba, nano-alumina ndiyo yakanakisa sarudzo;kana iwe uchida kugadzirira maumbirwo refractories, unoda α-Al2O3 poda ine coarse grains, shrinkage duku, uye yakasimba deformation kuramba.Flake kana plate-shaped crystallites zviri nani;asi kana iri amorphous refractory material, α-Al2O3 inodiwa kuti ive nemvura yakanaka, yakakwirira sintering basa, uye chidimbu chekukura kwekugovera kunoda hukuru hukuru hwehuwandu, uye makristallite akaisvonaka-grained ari nani.
Kushandiswa kwea-alumina poda mune zvekunatsa zvinhu
Akasiyana polishing applications inoda zvinhu zvakasiyana.Zvigadzirwa zvekugezesa kwakashata uye kupenya kwepakati zvinoda simba rakasimba rekucheka uye kuomarara kwepamusoro, saka microstructure yavo uye makristasi anodiwa kuve akaomarara;α-alumina poda yekupenya kwakanaka kunoda kuti chigadzirwa chakakwenenzverwa chine pasi pasi roughness uye yakakwirira gloss Naizvozvo, iyo diki yekutanga crystal ye α-Al2O3, zviri nani.
Kushandiswa kwea-alumina poda mune yekuzadza zvinhu
Muchinyorwa chekuzadza, kuitira kuti ive nechokwadi chekuti inonyatso sangana ne organic matter uye kuderedza kukanganiswa kwe viscosity ye system, chinonyanya kukosha chinodiwa che α-Al2O3 ndechekuti fluidity yakanaka zvakakwana, zviri nani kutenderera, nekuti iyo yakakwira sphericity, pamusoro.Iyo diki iyo simba, zviri nani iyo yepamusoro fluidity yebhora;chechipiri, iyo α-Al2O3 poda ine yakazara crystal kukura, yakakwirira chemikemikari kuchena uye yakakwirira yechokwadi chaiyo giravhiti ine zviri nani kupisa conductivity uye mhedzisiro iri nani kana ichishandiswa insulating uye thermally conductive zvinhu.
Kushandiswa kwea-alumina poda mu capacitor corundum zvinhu
Muindasitiri, pure α-alumina poda inowanzoputirwa muchoto chemagetsi chepamusoro-soro kuti iite artificial corundum, inozivikanwawo sefused corundum.Ichi chinyorwa chine maitiro ekuoma kwepamusoro, mipendero yakajeka uye makona, uye microstructure inonyanya kuswedera pedyo ne spherical.Mukugadzirisa kwepamusoro-soro, zviyo zvinoputika zvine simba rakasimba rekucheka, uye zviyo zvinoputika hazvisi nyore kuputsa.nokudaro kuwedzera hupenyu hwayo hwebasa.