RU2015109629A - Композитный материал на основе оксида циркония - Google Patents

Композитный материал на основе оксида циркония Download PDF

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RU2015109629A
RU2015109629A RU2015109629A RU2015109629A RU2015109629A RU 2015109629 A RU2015109629 A RU 2015109629A RU 2015109629 A RU2015109629 A RU 2015109629A RU 2015109629 A RU2015109629 A RU 2015109629A RU 2015109629 A RU2015109629 A RU 2015109629A
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composite material
material according
zirconium oxide
content
mol
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RU2015109629A
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RU2640853C2 (ru
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Лукас ГОТТВИК
Майнхард КУНТЦ
Алессандро Алан ПОРПОРАТИ
Юлиане ЭРЛИХ
Андреас МОРХАРДТ
Килиан ФРИДЕРИХ
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Керамтек Гмбх
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/486—Fine ceramics
    • C04B35/488—Composites
    • C04B35/4885—Composites with aluminium oxide
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    • A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
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Abstract

1. Композитный материал, содержащий керамическую матрицу из оксида циркония и диспергированную в ней по меньшей мере одну вторичную фазу, отличающийся тем, что матрица из оксида циркония составляет по меньшей мере 51 об.% композитного материала, а вторичная фаза составляет от 1 до 49 об.% композитного материала, причем оксид циркония в основном, предпочтительно в количестве от 90 до 99%, особенно предпочтительно в количестве от 95 до 99% в расчете на содержание всего оксида циркония находится в тетрагональной фазе, причем тетрагональная фаза оксида циркония химически и/или механически стабилизирована.2. Композитный материал по п. 1, отличающийся тем, что матрица из оксида циркония имеет размер зерен в среднем от 1 до 2,0 мкм, предпочтительно в среднем от 0,5 до 2,0 мкм.3. Композитный материал по п. 1, отличающийся тем, что в качестве химических стабилизаторов он содержит YO, СеО, GdO, SmOи/или ErO, причем общее содержание химических стабилизаторов составляет менее 12 мол.% в расчете на содержание оксида циркония.4. Композитный материал по п. 3, отличающийся тем, что содержание YOсоставляет ≤3 мол.%, предпочтительно ≤2,5 мол.%; и/или содержание CeOсоставляет ≤12 мол.%; и/или содержание GdOсоставляет ≤3 мол.%; и/или содержание SmOсоставляет ≤3 мол.% и/или содержание ErOсоставляет ≤3 мол.%, в каждом случае, в расчете на содержание оксида циркония.5. Композитный материал по п. 1, отличающийся тем, что оксид циркония и/или вторичная фаза содержат растворимые компоненты.6. Композитный материал по п. 5, отличающийся тем, что в качестве растворимых компонентов он содержит, предпочтительно в виде оксида, один или несколько из следующих элементов: Cr, Fe, Mg, Са, Ti, Y, Се, лантаноиды и/или V.7. Композитный материал по п. 1, отличающийся тем, что вторичная фаза содержит

Claims (15)

1. Композитный материал, содержащий керамическую матрицу из оксида циркония и диспергированную в ней по меньшей мере одну вторичную фазу, отличающийся тем, что матрица из оксида циркония составляет по меньшей мере 51 об.% композитного материала, а вторичная фаза составляет от 1 до 49 об.% композитного материала, причем оксид циркония в основном, предпочтительно в количестве от 90 до 99%, особенно предпочтительно в количестве от 95 до 99% в расчете на содержание всего оксида циркония находится в тетрагональной фазе, причем тетрагональная фаза оксида циркония химически и/или механически стабилизирована.
2. Композитный материал по п. 1, отличающийся тем, что матрица из оксида циркония имеет размер зерен в среднем от 1 до 2,0 мкм, предпочтительно в среднем от 0,5 до 2,0 мкм.
3. Композитный материал по п. 1, отличающийся тем, что в качестве химических стабилизаторов он содержит Y2O3, СеО2, Gd2O3, Sm2O3 и/или Er2O3, причем общее содержание химических стабилизаторов составляет менее 12 мол.% в расчете на содержание оксида циркония.
4. Композитный материал по п. 3, отличающийся тем, что содержание Y2O3 составляет ≤3 мол.%, предпочтительно ≤2,5 мол.%; и/или содержание CeO2 составляет ≤12 мол.%; и/или содержание Gd2O3 составляет ≤3 мол.%; и/или содержание Sm2O3 составляет ≤3 мол.% и/или содержание ErO3 составляет ≤3 мол.%, в каждом случае, в расчете на содержание оксида циркония.
5. Композитный материал по п. 1, отличающийся тем, что оксид циркония и/или вторичная фаза содержат растворимые компоненты.
6. Композитный материал по п. 5, отличающийся тем, что в качестве растворимых компонентов он содержит, предпочтительно в виде оксида, один или несколько из следующих элементов: Cr, Fe, Mg, Са, Ti, Y, Се, лантаноиды и/или V.
7. Композитный материал по п. 1, отличающийся тем, что вторичная фаза содержит дисперсоиды, которые вследствие их кристаллической структуры обеспечивают деформацию при сдвиге на микроскопической плоскости и/или снижают твердость композитного материала.
8. Композитный материал по п. 1, отличающийся тем, что величина частиц вторичной фазы является меньшей или равной величине зерен оксида циркония, причем размер частиц составляет предпочтительно от 0,2 до 2,0 мкм, особенно предпочтительно от 0,2 до 0,5 мкм.
9. Композитный материал по п. 1, отличающийся тем, что объемное содержание вторичной фазы составляет от 1 до 10 об.%, особенно предпочтительно от 4 до 6 об.%.
10. Композитный материал по п. 1, отличающийся тем, что вторичная фаза выбрана из одного или нескольких следующих соединений: гексаалюминат стронция (SrAl12O19), алюминат лантана (LaAl11O18), гидроксилапатит (Са10(PO4)6(ОН)2), фторапатит (Ca10(PO4)6F2), трикальцийфосфат (Са3(PO4)2), шпинель (MgAl2O4), оксид алюминия (Al2O3), иттрий-алюминиевый гранат (Y3Al5O12), муллит (Al6Si2O13), циркон (ZrSiO4), кварц (SiO2), тальк (Mg3Si4O10(OH)2), каолинит (Al2Si2O5(OH)4), пирофиллит (Al2Si4O10(OH)2), калиевый полевой шпат (KAISi3O8), лейцит (KAISi2O8) и метасиликат лития (Li2SiO3), предпочтительно гексаалюминат стронция, алюминат лантана, гидроксилапатит, фторапатит, шпинель, оксид алюминия и циркон; особенно предпочтительно гексаалюминат стронция.
11. Композитный материал по одному из пп. 1-10, отличающийся тем, что он имеет твердость менее 1350 (HV10), предпочтительно менее 1200 и особенно предпочтительно менее 1000.
12. Композитный материал по одному из пп. 1-10, отличающийся тем, что он имеет прочность на разрыв ≥800 МПа.
13. Композитный материал по одному из пп. 1-10, отличающийся тем, что он имеет допустимую повреждаемость или соответственно остаточную прочность после HV50-вдавливания более 400 МПа, предпочтительно более 500 МПа и особенно предпочтительно более 600 МПа.
14. Применение композитного материала по одному из пп. 1-13 в стоматологической и медицинской технике, в частности для изготовления искусственных зубных протезов, для реставрации зубов, такой как мосты, коронки, пломбы и накладки, зубные корневые штифты, имплантаты и опорные зубы, предпочтительно в области техники имплантирования, особенно предпочтительно в области позвоночника, например, в качестве распорки/кейджа.
15. Способ получения спеченного формованного изделия из композитного материала по одному из пп. 1-13, включающий стадии:
a) введение порошковой смеси предварительно заданного состава в воду; при необходимости, с использованием разжижителей;
b) гомогенизация в аппарате для растворения (скоростная мешалка);
c) размол в шаровой мельнице с мешалкой;
d) при необходимости, добавление органических связующих;
e) распылительные сушки;
f) увлажнение гранулята водой и при необходимости другими вспомогательными средствами для прессования;
g) аксиальное прессование блоков;
h) режущая обработка блоков в сыром или в подвергнутом предварительному спеканию состоянии;
i) спекание;
j) твердая обработка.
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GB201111549D0 (en) 2011-07-06 2011-08-24 Nobel Biocare Services Ag Composite ceramic for dental implants

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BR112015003594B1 (pt) 2021-09-28
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CN104736498B (zh) 2018-11-13
EP2885259A1 (de) 2015-06-24
RU2640853C2 (ru) 2018-01-12
CN104736498A (zh) 2015-06-24
JP2015533754A (ja) 2015-11-26
DE102013216440A1 (de) 2014-02-20
JP6333254B2 (ja) 2018-05-30
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US9783459B2 (en) 2017-10-10
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