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CN111971261A - 基于氧化锆并且具有其他氧化物的陶瓷材料 - Google Patents

基于氧化锆并且具有其他氧化物的陶瓷材料 Download PDF

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Publication number
CN111971261A
CN111971261A CN201980021284.3A CN201980021284A CN111971261A CN 111971261 A CN111971261 A CN 111971261A CN 201980021284 A CN201980021284 A CN 201980021284A CN 111971261 A CN111971261 A CN 111971261A
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Prior art keywords
oxide
ceramic material
oxides
ceo
mgo
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CN201980021284.3A
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A·弗洛雷斯·伦特里亚
W·施塔姆
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Siemens Corp
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Siemens Corp
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Abstract

通过针对性地选择添加到氧化锆中的氧化物，提供了一种陶瓷材料，特别是用于具有高耐烧结性、高膨胀耐受性和低导热性的涂层系统。

Description

基于氧化锆并且具有其他氧化物的陶瓷材料
技术领域
本发明涉及一种陶瓷材料，该陶瓷材料特别是可以被用于陶瓷层的用途。
背景技术
从由实心材料制成的陶瓷隔热罩或陶瓷保护层在涡轮机叶片或高温构件上的使用中已知基于氧化锆的陶瓷材料的用途。在此重要的是提供高耐烧结性、相稳定性、高断裂韧性和高膨胀耐受性。
发明内容
因此，本发明的目的是改进现有的材料系统。
该目的通过根据权利要求1的陶瓷材料实现。
在其他从属权利要求中列出了其他优点，其可以任意彼此组合以实现其他优点。
图1、图2示意性地示出了由陶瓷材料制成的涂层系统。
建议使用4mol％至30mol％的氧化铈(CeO2)、氧化钙(CaO)和/或氧化镁(MgO)作为其他可选氧化物，并且使用2mol％至30mol％的氧化铒(Er2O3)和/或氧化镱(Yb2O3)作为基础氧化物。
这样的陶瓷层特别是具有20μm至1000μm的层厚度，特别是高达2000μm的层厚度，并且优选地可以借助于热喷涂、特别是APS或EB-PVD来制造。
陶瓷材料具有高耐烧结性、高膨胀耐受性和高断裂韧性以及低导热性。
实施例：
ZrO2+
–Er2O3+Yb2O3
–Yb2O3
–Er2O3(3种具有基础氧化物的变型方案)
在这3种变型方案中可以分别添加
–CeO2
–CaO
–MgO
–CeO2+CaO
–CeO2+MgO
–CaO+MgO
–CeO2+CaO+MgO
作为其他氧化物，即总共21种变型方案。
具体实施方式
图1示出了根据本发明的涂层系统1。
涂层系统1具有基底4。基底4特别是镍基超级合金或CMC基底。
在基底4上存在有粘结层，特别是在镍基超级合金的情况中，粘结层为NiCoCrAlY基合金或铝化物层或铝铂化物层。
在涂覆期间或运行期间，在金属助粘剂层上形成氧化物层(TGO)。
在该氧化物层(TGO)或金属助粘剂层7上施加有根据该陶瓷材料的陶瓷层。
在陶瓷基底4(CMC)的情况中，陶瓷层10可能不需要粘结层。
在图2中示出了一种变型方案，其中就陶瓷保护层而言的涂层系统1’被设计成两层。粘结层7的基底和/或基底材料类似于图1。然而，最外层的陶瓷层16在此形成本发明的陶瓷材料。
为了适配于热膨胀系数或适配于孔隙率，在该陶瓷层16下方存在有陶瓷粘结层13。

Claims (15)

1.一种陶瓷材料，
所述陶瓷材料基于氧化锆(ZrO2)，
具有氧化镱(Yb2O3)和/或氧化铒(Er2O3)作为一种或多种基础氧化物，以及
可选地具有选自以下组中的至少一种其他氧化物：氧化铈(CeO2)、氧化钙(CaO)和氧化镁(MgO)，
特别是由所述基础氧化物和所述其他氧化物组成。
2.根据权利要求1所述的陶瓷材料，
其中氧化铒(Er2O3)和氧化镱(Yb2O3)被使用作为基础氧化物，
特别是仅氧化铒(Er2O3)和氧化镱(Yb2O3)两者被使用作为氧化物。
3.根据权利要求1所述的陶瓷材料，
其中仅氧化铒(Er2O3)被使用作为基础氧化物，
特别是仅氧化铒(Er2O3)被使用作为氧化物。
4.根据权利要求1所述的陶瓷材料，
其中仅氧化镱(Yb2O3)被使用作为基础氧化物，
特别是仅氧化镱(Yb2O3)被使用作为氧化物。
5.根据权利要求1、2、3或4中的任一项或多项所述的陶瓷材料，
所述陶瓷材料具有一种或多种基础氧化物以及至少一种其他氧化物。
6.根据权利要求1、2、3、4或5所述的陶瓷材料，
其中氧化钙(CaO)和氧化铈(CeO2)被使用作为其他氧化物，
特别是仅氧化钙(CaO)和氧化铈(CeO2)被使用作为其他氧化物。
7.根据权利要求1、2、3、4或5所述的陶瓷材料，
其中氧化钙(CaO)和氧化镁(MgO)被使用作为其他氧化物，
特别是仅氧化钙(CaO)和氧化镁(MgO)被使用作为其他氧化物。
8.根据权利要求1、2、3、4或5所述的陶瓷材料，
其中氧化镁(MgO2)和氧化铈(CeO2)被使用作为其他氧化物，
特别是仅氧化镁(MgO2)和氧化铈(CeO2)被使用作为其他氧化物。
9.根据权利要求1、2、3、4或5所述的陶瓷材料，
其中氧化铈(CeO2)被使用作为其他氧化物，
特别是仅氧化铈(CeO2)被使用作为其他氧化物。
10.根据权利要求1、2、3、4或5中的任一项或多项所述的陶瓷材料，
其中氧化镁(MgO)被使用作为其他氧化物，
特别是仅氧化镁(MgO)被使用作为其他氧化物。
11.根据权利要求1、2、3、4或5中的任一项或多项所述的陶瓷材料，
其中氧化镁(MgO)、氧化钙(CaO)和氧化铈(CeO2)被使用作为其他氧化物，
特别是仅氧化镁(MgO)、氧化钙(CaO)和氧化铈(CeO2)被使用作为其他氧化物。
12.根据权利要求1至11中的任一项或多项所述的陶瓷材料，
所述陶瓷材料具有2mol％至30mol％的氧化镱(Yb2O3)和/或氧化铒(Er2O3)。
13.根据权利要求1至12中的任一项或多项所述的陶瓷材料，
所述陶瓷材料具有4mol％至30mol％的氧化铈(CeO2)、氧化钙(CaO)和/或氧化镁(MgO)。
14.一种涂层系统，具有：
一个基底，
特别是一个金属基底，
所述基底基于镍基或钴基超级合金，
一个粘结层，
特别是一个基于NiCoCrAlY的粘结层，以及
一个陶瓷层，所述陶瓷层基于根据前述权利要求1至13中的任一项或多项所述的陶瓷材料。
15.根据权利要求14所述的涂层系统，
所述陶瓷层的层厚度为20μm至1000μm、特别是至2000μm，
特别是借助于热喷涂、特别是APS或EB-PVD来制造。
CN201980021284.3A 2018-03-23 2019-02-26 基于氧化锆并且具有其他氧化物的陶瓷材料 Pending CN111971261A (zh)

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CN101723667A (zh) * 2009-11-18 2010-06-09 北京航空航天大学 带有网状裂纹结构的多元稀土氧化物掺杂氧化锆热障涂层及其制备方法
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