Keramika z oxidu hlinit\u00e9ho pat\u0159\u00ed mezi velmi \u017e\u00e1dan\u00e9 \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly d\u00edky sv\u00e9 vynikaj\u00edc\u00ed pevnosti, tvrdosti, chemick\u00e9 odolnosti a tepeln\u00e9 stabilit\u011b. Nav\u00edc tato hust\u00e1, nepor\u00e9zn\u00ed keramika nevykazuje p\u0159i vypalov\u00e1n\u00ed \u017e\u00e1dn\u00e9 probl\u00e9my s prask\u00e1n\u00edm.<\/p>\n
D\u00edky t\u011bmto vlastnostem se jedn\u00e1 o vynikaj\u00edc\u00ed materi\u00e1l pro v\u00fdrobu sou\u010d\u00e1st\u00ed, jako jsou izol\u00e1tory, zapalovac\u00ed sv\u00ed\u010dky a kryty obvod\u016f. Oxidy hlin\u00edku vysok\u00e9 \u010distoty mohou m\u00edt vynikaj\u00edc\u00ed dielektrick\u00e9 vlastnosti i p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch.<\/p>\n
Keramika z oxidu hlinit\u00e9ho pat\u0159\u00ed k nejpevn\u011bj\u0161\u00edm technick\u00fdm keramik\u00e1m na trhu a vyzna\u010duje se mimo\u0159\u00e1dn\u011b vysokou mechanickou pevnost\u00ed (pevnost v tlaku m\u016f\u017ee dosahovat a\u017e 250 000 psi). D\u00edky tomu je vhodn\u00e1 pro n\u00e1ro\u010dn\u00e9 technick\u00e9 aplikace.<\/p>\n
Keramicko-kovov\u00e9 pr\u016fchodky, pr\u016fchodky pro rentgenov\u00e9 komponenty, elektrick\u00e9 izol\u00e1tory a pr\u016fchodky, aplikace v oblasti nepr\u016fst\u0159eln\u00fdch vest \u2013 to jsou jen n\u011bkter\u00e9 z mo\u017enost\u00ed vyu\u017eit\u00ed keramiky. D\u00edky sv\u00e9 vynikaj\u00edc\u00ed odolnosti proti od\u011bru a chemick\u00e9 pasivit\u011b v\u016f\u010di v\u011bt\u0161in\u011b kyselin a z\u00e1sad je keramika vynikaj\u00edc\u00ed volbou materi\u00e1lu. Tyto vlastnosti ji p\u0159edur\u010duj\u00ed k pou\u017eit\u00ed jako keramicko-kovov\u00e9 pr\u016fchodky, elektrick\u00e9 izol\u00e1tory a pr\u016fchodky, a dokonce i k lisov\u00e1n\u00ed do monolitick\u00fdch dla\u017edic s dvojit\u00fdm nebo jednoduch\u00fdm zak\u0159iven\u00edm pro v\u00fdrobu nepr\u016fst\u0159eln\u00fdch vest.<\/p>\n
Keramika z oxidu hlinit\u00e9ho se vyr\u00e1b\u00ed v r\u016fzn\u00fdch stupn\u00edch \u010distoty s p\u0159\u00edsadami, jejich\u017e \u00fa\u010delem je optimalizovat konkr\u00e9tn\u00ed \u017e\u00e1douc\u00ed vlastnosti materi\u00e1lu, jako jsou nap\u0159\u00edklad oxid chromu nebo oxid manganu pro zv\u00fd\u0161en\u00ed tvrdosti \u010di zlep\u0161en\u00ed barvy, zat\u00edmco zm\u011bna jej\u00edho koeficientu tepeln\u00e9 rozta\u017enosti m\u016f\u017ee zm\u00edrnit vliv teplotn\u00edch zm\u011bn na rozm\u011brovou stabilitu; tato vlastnost je obzvl\u00e1\u0161t\u011b cenn\u00e1 v p\u0159\u00edpad\u011b, \u017ee bude dan\u00fd d\u00edl p\u0159ip\u00e1jen na kovy.<\/p>\n
Keramika z oxidu hlinit\u00e9ho se vyzna\u010duje vynikaj\u00edc\u00ed tepelnou vodivost\u00ed, kter\u00e1 se m\u011bn\u00ed nep\u0159\u00edmo \u00fam\u011brn\u011b s hustotou materi\u00e1lu. \u010c\u00edm m\u00e9n\u011b dutin materi\u00e1l obsahuje, t\u00edm vy\u0161\u0161\u00ed je jeho hustota a t\u00edm p\u00e1dem i tepeln\u00e1 vodivost.<\/p>\n
Keramika z oxidu hlinit\u00e9ho se \u010dasto vol\u00ed pro r\u016fzn\u00e9 \u00fa\u010dely d\u00edky sv\u00e9 vynikaj\u00edc\u00ed odolnosti v\u016f\u010di vysok\u00fdm teplot\u00e1m, mechanick\u00e9mu nam\u00e1h\u00e1n\u00ed a chemick\u00e9mu rozkladu zp\u016fsoben\u00e9mu r\u016fzn\u00fdmi druhy chemik\u00e1li\u00ed.<\/p>\n
Keramika z oxidu hlinit\u00e9ho Sintox CL se d\u00edky sv\u00e9 schopnosti zastavit st\u0159elbu z ru\u010dn\u00edch zbran\u00ed i projektily st\u0159edn\u00edho kalibru v\u00fdborn\u011b hod\u00ed pro vojensk\u00e9 vybaven\u00ed; z\u00e1rove\u0148 je pokovena, co\u017e umo\u017e\u0148uje jej\u00ed pou\u017eit\u00ed jako izol\u00e1tor\u016f, senzor\u016f a p\u0159\u00edstroj\u016f pro m\u011b\u0159en\u00ed pr\u016ftoku, rentgenov\u00fdch za\u0159\u00edzen\u00ed, chemick\u00fdch \u010derpadel, laserov\u00fdch komponent\u016f \u010di telekomunika\u010dn\u00edch za\u0159\u00edzen\u00ed.<\/p>\n
Keramika z oxidu hlinit\u00e9ho (Al\u2082O\u2083) pat\u0159\u00ed k nejtvrd\u0161\u00edm dostupn\u00fdm technick\u00fdm materi\u00e1l\u016fm. Je velmi tvrd\u00e1, odoln\u00e1, odoln\u00e1 proti od\u011bru a vykazuje vysokou pevnost jak p\u0159i pokojov\u00e9 teplot\u011b, tak p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch \u2013 nemluv\u011b o tom, \u017ee je chemicky inertn\u00ed a vyzna\u010duje se vynikaj\u00edc\u00ed odolnost\u00ed proti korozi.<\/p>\n
Vst\u0159ikov\u00e1n\u00ed je nej\u010dast\u011bji pou\u017e\u00edvanou v\u00fdrobn\u00ed metodou pro keramiku z oxidu hlinit\u00e9ho, a to d\u00edky \u0161irok\u00e9 \u0161k\u00e1le mo\u017en\u00fdch tvar\u016f d\u00edl\u016f. Odborn\u00edci nejprve vyrob\u00ed vst\u0159ikovac\u00ed formu p\u0159izp\u016fsobenou konkr\u00e9tn\u00edmu v\u00fdrobku a pot\u00e9 do jej\u00ed dutiny vst\u0159\u00edknou pr\u00e1\u0161ek z oxidu hlinit\u00e9ho, kter\u00fd se slinov\u00e1n\u00edm p\u0159em\u011bn\u00ed na kompaktn\u00ed t\u011blesa.<\/p>\n
Bylo zji\u0161t\u011bno, \u017ee 3D ti\u0161t\u011bn\u00fd oxid hlinit\u00fd vykazuje extr\u00e9mn\u011b n\u00edzk\u00e1 zbytkov\u00e1 nap\u011bt\u00ed, \u010deho\u017e bylo dosa\u017eeno pomoc\u00ed multimateri\u00e1lov\u00e9ho p\u0159\u00edstupu, p\u0159i kter\u00e9m se v r\u00e1mci tiskov\u00e9 podlo\u017eky vrstv\u00ed r\u016fzn\u00e9 materi\u00e1ly. To umo\u017e\u0148uje p\u0159izp\u016fsobit zbytkov\u00e1 nap\u011bt\u00ed a dos\u00e1hnout vy\u0161\u0161\u00ed pevnosti ne\u017e u monolitick\u00e9ho oxidu hlinit\u00e9ho, stejn\u011b jako hustoty v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e u b\u011b\u017en\u00fdch keramick\u00fdch pr\u00e1\u0161k\u016f.<\/p>\n
Jednou z nejv\u00fdrazn\u011bj\u0161\u00edch vlastnost\u00ed keramiky z oxidu hlinit\u00e9ho jsou jej\u00ed samomazac\u00ed vlastnosti. B\u011bhem pou\u017e\u00edv\u00e1n\u00ed vytv\u00e1\u0159\u00ed na m\u00edst\u011b mazac\u00ed film, kter\u00fd m\u016f\u017ee v\u00fdrazn\u011b sn\u00ed\u017eit t\u0159en\u00ed a opot\u0159eben\u00ed \u2013 co\u017e je ide\u00e1ln\u00ed pro aplikace, kter\u00e9 vy\u017eaduj\u00ed pevnost, odolnost proti korozi a chemickou inertnost.<\/p>\n
Zlep\u0161en\u00ed mazac\u00edch vlastnost\u00ed keramick\u00e9ho materi\u00e1lu z oxidu hlinit\u00e9ho lze dos\u00e1hnout r\u016fzn\u00fdmi zp\u016fsoby. Pevn\u00e1 maziva lze p\u0159id\u00e1vat p\u0159\u00edmo do jeho matrice; tato metoda je v\u0161ak n\u00e1kladn\u00e1 i \u010dasov\u011b n\u00e1ro\u010dn\u00e1. Alternativn\u00ed strategi\u00ed by bylo vytvo\u0159en\u00ed kompozitn\u00edch keramick\u00fdch materi\u00e1l\u016f z oxidu hlinit\u00e9ho s p\u0159\u00edmo zabudovan\u00fdmi mazivy p\u0159izp\u016fsoben\u00fdmi konkr\u00e9tn\u00edm po\u017eadavk\u016fm.<\/p>\n
P\u0159i t\u00e9to metod\u011b se keramika z oxidu hlinit\u00e9ho vypl\u0148uje mikrokapslemi napln\u011bn\u00fdmi lubrika\u010dn\u00edmi polymery, kter\u00e9 se n\u00e1sledn\u011b vakuov\u011b impregnuj\u00ed do por\u00e9zn\u00ed keramiky z oxidu hlinit\u00e9ho, \u010d\u00edm\u017e vznikaj\u00ed por\u00e9zn\u00ed struktury obsahuj\u00edc\u00ed tyto polymery. Makroskopick\u00e9 experimenty s t\u0159en\u00edm prok\u00e1zaly vynikaj\u00edc\u00ed lubrika\u010dn\u00ed vlastnosti. Nav\u00edc bylo mo\u017en\u00e9 dos\u00e1hnout vy\u0161\u0161\u00ed pevnosti bez nutnosti pou\u017eit\u00ed pevn\u00fdch maziv. Obsah vlhkosti hraje rovn\u011b\u017e v\u00fdznamnou roli ve v\u00fdkonu keramiky z oxidu hlinit\u00e9ho; spole\u010dnost LECO Corporation nab\u00edz\u00ed p\u0159esn\u00fd analyz\u00e1tor pro stanoven\u00ed vlhkosti, kter\u00fd p\u0159esn\u011b m\u011b\u0159\u00ed obsah vlhkosti v materi\u00e1lech, jako je tato keramika z oxidu hlinit\u00e9ho a dal\u0161\u00ed.<\/p>\n
Keramika z oxidu hlinit\u00e9ho se vyzna\u010duje v\u00fdjime\u010dnou rozm\u011brovou stabilitou, co\u017e v\u00fdrobc\u016fm elektroniky usnad\u0148uje dosahovat kvalitn\u00edch v\u00fdkon\u016f i v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch \u2013 d\u00edky tomu je keramika z oxidu hlinit\u00e9ho ide\u00e1ln\u00ed volbou materi\u00e1lu pro moduly IGBT s vy\u0161\u0161\u00edmi po\u017eadavky na v\u00fdkon.<\/p>\n
Keramika z oxidu hlinit\u00e9ho je zn\u00e1m\u00e1 svou v\u00fdjime\u010dnou odolnost\u00ed proti od\u011bru a opot\u0159eben\u00ed, d\u00edky \u010demu\u017e je vhodn\u00e1 pro v\u00fdrobky vystaven\u00e9 siln\u00e9mu opot\u0159eben\u00ed, jako jsou vysokovakuov\u00e1 za\u0159\u00edzen\u00ed a v\u011bdeck\u00e9 p\u0159\u00edstroje \u2013 nap\u0159\u00edklad izol\u00e1tory sond sn\u00edma\u010d\u016f \u2013, ale tak\u00e9 kel\u00edmky pou\u017e\u00edvan\u00e9 p\u0159i ta\u017een\u00ed skla nebo trubky pec\u00ed.<\/p>\n
Keramika z oxidu hlinit\u00e9ho se m\u016f\u017ee vyr\u00e1b\u011bt r\u016fzn\u00fdmi postupy, av\u0161ak vst\u0159ikov\u00e1n\u00ed se jev\u00ed jako optim\u00e1ln\u00ed zp\u016fsob pro aplikace ve vysoce v\u00fdkonn\u00e9 elektronice. Tento proces zahrnuje n\u00e1vrh a v\u00fdrobu forem p\u0159ed samotn\u00fdm vst\u0159ikov\u00e1n\u00edm, odstran\u011bn\u00ed pojiva ze suroviny a n\u00e1sledn\u00e9 vypalov\u00e1n\u00ed za \u00fa\u010delem vytvo\u0159en\u00ed kone\u010dn\u00e9ho produktu. D\u00edky t\u00e9to flexibiln\u00ed v\u00fdrobn\u00ed metod\u011b jsou v\u00fdrobci schopni vyr\u00e1b\u011bt substr\u00e1ty na m\u00edru, p\u0159izp\u016fsoben\u00e9 konkr\u00e9tn\u00edm pot\u0159eb\u00e1m z\u00e1kazn\u00edk\u016f.<\/p>\n
V\u00fdrobky z oxidu hlinit\u00e9ho spole\u010dnosti ACE Ceramic lze pomoc\u00ed r\u016fzn\u00fdch technik spojov\u00e1n\u00ed a tv\u00e1\u0159en\u00ed p\u0159izp\u016fsobit tak, aby p\u0159esn\u011b spl\u0148ovaly po\u017eadavky va\u0161eho konkr\u00e9tn\u00edho pou\u017eit\u00ed. Pro \u00fapravu ur\u010dit\u00fdch vlastnost\u00ed, jako je tvrdost, tepeln\u00e1 stabilita, elektrick\u00e1 vodivost nebo lomov\u00e1 hou\u017eevnatost, lze tak\u00e9 p\u0159id\u00e1vat p\u0159\u00edsady; mezi b\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 p\u0159\u00edsady pat\u0159\u00ed oxid manganu, oxid k\u0159emi\u010dit\u00fd nebo oxid zirkoni\u010dit\u00fd.<\/p>\n
Keramika z oxidu hlinit\u00e9ho vyu\u017e\u00edv\u00e1 jako hlavn\u00ed surovinu vysoce \u010dist\u00fd oxid hlinit\u00fd, kter\u00fd se z\u00edsk\u00e1v\u00e1 z bauxitov\u00e9 rudy a zu\u0161lech\u0165uje se slinov\u00e1n\u00edm \u2013 p\u0159i kter\u00e9m se \u010d\u00e1stice oxidu hlinit\u00e9ho spojuj\u00ed do pevn\u00e9 hmoty, kterou lze n\u00e1sledn\u011b pou\u017e\u00edt k tvarov\u00e1n\u00ed v\u00fdrobku metodami, jako je lit\u00ed z ka\u0161e, extruzn\u00ed tv\u00e1\u0159en\u00ed nebo vst\u0159ikov\u00e1n\u00ed.<\/p>\n
PSZTA (porcel\u00e1n-silik\u00e1t-zirkon), jedna z nejuniverz\u00e1ln\u011bj\u0161\u00edch forem hlin\u00edkov\u00e9 keramiky, se skl\u00e1d\u00e1 z nejm\u00e9n\u011b 90% \u010dist\u00e9ho oxidu hlinit\u00e9ho s p\u0159idan\u00fdmi \u010d\u00e1sticemi zirkonu, kter\u00e9 zvy\u0161uj\u00ed pevnost a lomovou hou\u017eevnatost \u2013 d\u00edky \u010demu\u017e je tento materi\u00e1l vhodn\u00fd pro vysokoteplotn\u00ed aplikace, jako je v\u00fdroba trubek nebo polovodi\u010dov\u00fdch sou\u010d\u00e1stek.<\/p>","protected":false},"excerpt":{"rendered":"
Discover the Power and Versatility of Alumina Ceramic Alumina ceramics are highly sought-after refractory materials due to their excellent strength, hardness, chemical resistance and thermal stability. Furthermore, these dense nonporous ceramics exhibit no cracking issues during firing. These properties make them an excellent material to use when producing components such as insulators, spark plugs and… \u010c\u00edst d\u00e1le »Objevte s\u00edlu a v\u0161estrannost hlin\u00edkov\u00e9 keramiky<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[12],"tags":[],"class_list":["post-157","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/posts\/157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/comments?post=157"}],"version-history":[{"count":1,"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/posts\/157\/revisions"}],"predecessor-version":[{"id":158,"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/posts\/157\/revisions\/158"}],"wp:attachment":[{"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/media?parent=157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/categories?post=157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramic.net\/cs\/wp-json\/wp\/v2\/tags?post=157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}