ʻO Zirconia Ceramics X-Ray Diffraction

X-Ray Diffraction

Hōʻike i nā ʻāpana hoʻopaʻa o ka ʻikepili ʻokoʻa Xray ma nā laʻana maʻemaʻe a hoʻohaʻahaʻa ʻia no Metal (hema) a me Ceramic (Akau).

ʻO nā pahu pahu pahu ceramic center, e like me ka wānana a nā mea kākau, ua kūpaʻa mau ma ke ʻano o ka haku mele (ʻaʻohe hōʻailona o ka decomposition a i ʻole nā ​​loli kemika ma 300 °C a me 600 °C).ʻO ka mea ʻē aʻe ka hāpana metala e hoʻololi i ka haku mele.

E like me ka mea i ʻike ʻia e ka ʻikepili XRD, hōʻike nā ʻāpana seramika i ka paʻa o ke ʻano o ka haku mele.He hōʻailona kēia no ka hoʻololi ʻole ʻana i ke ʻano aniani no ka mea e mau ana ka ikaika a me nā kūlana kiʻekiʻe o nā mokulele ʻokoʻa.Ke hoʻohana nei i ka hoʻomaʻemaʻe rietveld, ʻike mākou i kā mākou kumu XRD i ka pae tetragonal koʻikoʻi i pili i ka mokulele (101).

Hōʻike pū ka ʻikepili XRD aia kahi ʻano monoclinic liʻiliʻi e hoʻomaka ana e ala mai no ka hāpana 600 °C ma muli o ka mokulele (111) ma ke kihi haʻahaʻa 2θ.Ma ka helu ʻana i ka mol% mai ka% kaumaha i hāʻawi ʻia (nā ʻikepili hoʻohui i hāʻawi ʻia e Wonder Garden), ua hoʻoholo ʻia ʻo ka hāpana Zirconia he 3 mol% Yttria doped Zirconia.I ka hoʻohālikelike ʻana i ke ʻano XRD i ke kiʻikuhi pae, ʻike mākou ua kūlike nā ʻikepili i hōʻiliʻili ʻia mai XRD me nā pae i loaʻa i ke kiʻi pae.ʻO ka hopena mai kā mākou ʻikepili XRD e hōʻike ana he mea paʻa loa ʻo Zirconia a ʻaʻole hoʻokō i kēia mau pae wela.

Witz Et al:Phase Evolution in Yttria-Stabilized Zirconia Thermal Barrier Coatings i aʻo ʻia e Rietveld Refinement of X-Ray Powder Diffraction Patterns.Journal of the American Ceramic Society.

■ Papa 1 - Hoʻohui ʻia o ka Post Ceramic Centerpost

Mai ka ʻikepili XRD, ua ʻike ʻia ʻo Brass ka mea metala.No nā noi wela kiʻekiʻe, hiki ke koho maʻamau akā e like me ka mea i ʻike ʻia, ʻoi aku ka wikiwiki o ka hoʻohaʻahaʻa ʻana i ka hoʻohālikelike ʻana i ka pou kikowaena ceramic.E like me ka mea i ʻike ʻia ma ka ʻāpana ma 600 °C (ka papa mua ma ka ʻaoʻao hema), ua hoʻololi nui ka mea.Ma ka huina haʻahaʻa 2θ, ke manaʻoʻiʻo nei mākou ua pili nā piko hou i ka hoʻokumu ʻana o ZnO (Zinc Oxide).Ma 300 °C no ka laʻana keleawe (hema XRD plot) ʻike mākou ʻaʻole nui ka loli i hiki ke hoʻohālikelike ʻia me ka laʻana maʻemaʻe.Ua hoʻomau ka hāpana ma ke ʻano kino a me ke kino maikaʻi, e hāʻawi ana i ka paʻa o nā mea waiwai mai ka lumi wela a hiki i 300 °C.