Cilv\u0113ki sal\u012bdzina cirkona bumbi\u0146as ar alum\u012bnija oks\u012bdu p\u0113c ciet\u012bbas un non\u0101k pie nepareiza secin\u0101juma. Alum\u012bnija oks\u012bds bie\u017ei vien ir nedaudz ciet\u0101ks. Tom\u0113r tas nav iemesls, k\u0101p\u0113c augstas ener\u0123ijas dzirnav\u0101s izmanto ar itrija vai cerija oks\u012bdu stabiliz\u0113tu cirkona oks\u012bdu. Noz\u012bm\u012bgie r\u0101d\u012bt\u0101ji ir bl\u012bvums, iztur\u012bba un tas, cik daudz no lod\u012btes paliek p\u0101ri p\u0113c m\u0113ne\u0161a darb\u012bbas ar maksim\u0101lo rot\u0101cijas \u0101trumu.<\/p>\n
Laba Y-TZP lod\u012bte sast\u0101v aptuveni no 95% ZrO\u2082 ar apm\u0113ram 5% Y\u2082O\u2083, ir bl\u012bvi sa\u0137epin\u0101ta, smalkgraudaina un tetragon\u0101la. Bl\u012bvums ir apm\u0113ram 6,0 g\/cm\u00b3. Ar ceriju stabiliz\u0113tiem materi\u0101liem bl\u012bvums var b\u016bt nedaudz augst\u0101ks \u2014 apm\u0113ram 6,2. 92 % alum\u012bnija oks\u012bda bl\u012bvums ir apm\u0113ram 3,6\u20133,7. Stikla bl\u012bvums ir 2 s vid\u0113j\u0101 diapazon\u0101. Sadursmes kin\u0113tisk\u0101 ener\u0123ija ir proporcion\u0101la masai. Pie viena un t\u0101 pa\u0161a lod\u012b\u0161u diametra un \u0101truma cirkonija trieciens p\u0101rnes vair\u0101k ener\u0123ijas uz \u0161\u0137idrumu. T\u0101d\u0113j\u0101di var sasmalcin\u0101t smalk\u0101k vai sasmalcin\u0101t to pa\u0161u materi\u0101lu ar liel\u0101ku cieto vielu saturu, nevis vienk\u0101r\u0161i grie\u017eot dzirnavas \u0101tr\u0101k, l\u012bdz ap\u0161uvums p\u0101rkarst.<\/p>\n
Iztur\u012bba ir otra puse. Alum\u012bnija oks\u012bds ir ciet un trausls. Y-TZP vai Ce-TZP l\u016bzuma iztur\u012bba parasti ir diapazon\u0101 no 8 l\u012bdz 12 MPa\u00b7m\u00bd, kas ir divas vai tr\u012bs reizes liel\u0101ka nek\u0101 alum\u012bnija oks\u012bda lod\u012btei. Mehanisms ir transform\u0101cijas iztur\u012bbas palielin\u0101\u0161an\u0101s: pl\u012bsumam m\u0113\u0123inot izplat\u012bties, tetragon\u0101lais grauds p\u0101riet monokl\u012bnisk\u0101 form\u0101, un apjoma izmai\u0146as darbojas pret pl\u012bsumu. Mal\u0161anas proces\u0101 tas izpau\u017eas k\u0101 maz\u0101ks skaits sadrag\u0101tu lod\u012b\u0161u izpl\u016bdes siet\u0101 un maz\u0101k asu atl\u016bzu, kas nodilina rotoru. L\u0113ts cirkonijs ar rupjiem graudiem vai sliktu stabiliz\u0101ciju \u0161o priek\u0161roc\u012bbu nesniedz. Tas sa\u0161\u0137e\u013cas k\u0101 cieta klints, un tad jums j\u0101maks\u0101 divreiz \u2014 par mal\u0161anas l\u012bdzek\u013cu zudumu un par mal\u0161anas iek\u0101rtas nodilumu.<\/p>\n
Nolieto\u0161an\u0101s ir br\u012bdis, kad pirkuma cena par\u0101da savu patieso v\u0113rt\u012bbu. Cirkonija kilogramma cena ir vair\u0101kas reizes augst\u0101ka nek\u0101 alum\u012bnija oks\u012bda. Kr\u0101s\u0101s, tint\u0113s, elektroniskaj\u0101 keramik\u0101, bateriju materi\u0101los un augstas t\u012br\u012bbas pak\u0101pes kvarc\u0101 pies\u0101r\u0146ojums, ko rada \u0101tri nolietojama lod\u012bte, izmaks\u0101 d\u0101rg\u0101k nek\u0101 pati lod\u012bte. T\u0113rauds atst\u0101j dzelzi. Alum\u012bnija oks\u012bds atst\u0101j alum\u012bnija oks\u012bdu. Maznodiluma Y-TZP lod\u012bte atst\u0101j \u013coti maz jebk\u0101du atlieku, un tie\u0161i t\u0101d\u0113\u013c produkts nesp\u0113j uz\u0146emt kr\u0101su vai Fe. Ar c\u0113rija oks\u012bdu stabiliz\u0113tas lod\u012btes bie\u017ei vien ir galvenais darbar\u012bks mitr\u0101s, augstas ener\u0123ijas mal\u0161anas iek\u0101rt\u0101s; itrija oks\u012bda lod\u012btes parasti izv\u0113las gad\u012bjumos, kad svar\u012bga ir t\u012br\u012bba un mazs izm\u0113rs (l\u012bdz pat 0,1\u20130,3 mm nano mal\u0161anai).<\/p>\n
Izm\u0113ram joproj\u0101m ir j\u0101atbilst dzirnav\u0101m. 2 mm liela lod\u012bte dzirnav\u0101s, kas paredz\u0113tas 0,8 mm lod\u012bt\u0113m, \u201cnesit\u012bs sp\u0113c\u012bg\u0101k lietder\u012bg\u0101 veid\u0101\u201d. T\u0101 izrais\u012bs separatora apst\u0101\u0161anos un boj\u0101s sietu. Pild\u012bjuma \u0101trums, \u0161\u0137idruma viskozit\u0101te un malu \u0101trums nosaka, vai augsta bl\u012bvuma izmanto\u0161ana pal\u012bdz vai vienk\u0101r\u0161i rada siltumu. Ar cirkoniju nostiprin\u0101tais alum\u012bnija oks\u012bds atrodas pa vidu \u2014 tas ir bl\u012bv\u0101ks un iztur\u012bg\u0101ks nek\u0101 parastais alum\u012bnija oks\u012bds, bet l\u0113t\u0101ks nek\u0101 piln\u012bb\u0101 TZP \u2014 un tas ir re\u0101ls materi\u0101la veids, nevis kompromisa sauklis, ja mal\u0161anai nav nepiecie\u0161ami 6 g\/cm\u00b3.<\/p>\n
Ja main\u0101t mal\u0161anas materi\u0101lu, nejaut\u0101jiet tikai par cenu par kilogramu. Noskaidrojiet nodiluma \u0101trumu j\u016bsu \u0161\u0137idrum\u0101, saspie\u0161anas iztur\u012bbu pie izmantot\u0101 diametra, sf\u0113risku formu, k\u0101 ar\u012b to, kas faktiski no lod\u012btes non\u0101k produkt\u0101. Cirkonija lod\u012bte ir mal\u0161anas r\u012bks. Tas atmaks\u0101jas, ja dzirnavas sasniedz specifik\u0101cijas ar maz\u0101ku mal\u0161anas l\u012bdzek\u013cu zudumu un maz\u0101ku atkritumu daudzumu partij\u0101. Tas neattaisnojas tikai t\u0101p\u0113c, ka uz maisi\u0146a uzrakst\u012btais nosaukums izklaus\u0101s presti\u017ei.<\/p>","protected":false},"excerpt":{"rendered":"
A Zirconia Ball Earns Its Keep in the Mill, Not on the Spec Sheet People compare zirconia balls to alumina by hardness and get the wrong answer. Alumina is often a bit harder. That is not why a high-energy mill ends up on yttria- or ceria-stabilized zirconia. The useful numbers are density, toughness, and how […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[21],"tags":[],"class_list":{"0":"post-313","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-knowledge","7":"czr-hentry"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/313"}],"collection":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/comments?post=313"}],"version-history":[{"count":1,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/313\/revisions"}],"predecessor-version":[{"id":314,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/313\/revisions\/314"}],"wp:attachment":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/media?parent=313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/categories?post=313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/tags?post=313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}