CN109400155A - 一种耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料及其制备方法与应用 - Google Patents
一种耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料及其制备方法与应用 Download PDFInfo
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- 229910052706 scandium Inorganic materials 0.000 title claims abstract description 46
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000002253 acid Substances 0.000 title claims abstract description 45
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 29
- 239000003963 antioxidant agent Substances 0.000 title claims abstract description 28
- 230000003078 antioxidant effect Effects 0.000 title claims abstract description 28
- 235000006708 antioxidants Nutrition 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000005245 sintering Methods 0.000 claims abstract description 16
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000005751 Copper oxide Substances 0.000 claims abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims abstract description 10
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 claims abstract description 9
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims abstract description 9
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- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
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- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
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- 229910019142 PO4 Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
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Abstract
本发明公开了一种耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料及其制备方法与应用。所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料是以氧化钪、五氧化二钽、氧化钛和氧化铜为原料制备得到,所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料致密度为99%,热扩散系数为0.6~2.6mm2/s(25~900℃),热导率为2.6~8.0W.m‑1.K‑1(25~900℃),硬度为10GPa,且在温度25~1400℃下均不发生相变。制备方法包括前处理、烧结步骤。应用为所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料在制备兼具热学和力学性能涂层中的应用。
Description
技术领域
本发明属于材料技术领域,具体涉及一种耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料及其制备方法与应用。
背景技术
环境涂层主要应用于航空发动机工业,具有低热导率、低热膨胀系数、抗烧结、高温稳定性良好等优点,主要起到防热腐蚀、降低陶瓷层与基体(SiC)间的热失配、有效抵抗粒子冲击从而保护航空发动机高温区域零部件的作用。目前广泛使用的主要有稀土硅酸盐(RE2Si2O7)等,但存在一定程度的不足:RE2Si2O7热膨胀系数较高,远远高于需要保护的基体材料。目前发现了许多具有优良热学性能的氧化物陶瓷,例如稀土铈酸盐(RE2Zr2O7)、稀土磷酸盐(REPO4)和稀土锆酸盐(RE2Zr2O7)等,但它们的热膨胀系数均较高约为8~10×10-6 K-1(1200 ℃),远远高于需要被保护的SiC材料的热膨胀系数5~6×10-6 K-1(1200 ℃),热膨胀系数的比匹配会产生巨大的热应力从而导致涂层失效。因此寻找具有与SiC匹配的热膨胀系数的氧化物涂层是当前亟待解决的问题。当前研究人员提出钽酸铝作为氧化物陶瓷材料的一种,可能兼具良好的热学及力学性能并且其热膨胀系数与SiC材料匹配,因此制备相对应的材料并对其热力学性能进行研究势在必行。
发明内容
本发明的第一目的在于提供一种耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料;第二目的在于提供所述的耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料的制备方法;第三目的在于提供所述的耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料的应用。
本发明的第一目的是这样实现的,所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料是以氧化钪、五氧化二钽、氧化钛和氧化铜为原料制备得到,所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料致密度为99%,热扩散系数为0.6~2.6mm2/s (25~900℃),热导率为2.6~8.0 W.m-1.K-1 (25~900℃),硬度为10 GPa,且在温度25~1400℃下均不发生相变。本发明的第二目的是这样实现的,包括前处理、烧结步骤,具体包括:
A、前处理:将配方配比的原料氧化钪、五氧化二钽、氧化钛和氧化铜混合均匀得到物料a,物料a中加入物料a质量8倍的无水乙醇,然后球磨后得到溶液b;
B、烧结:
1)将溶液b在温度50~100℃干燥5~20h得到粉末c,粉末c研磨过200~400目筛后压制成型得到型坯d,型坯d于温度500~1000℃下烧结5~15h冷却至室温得到坯样e;
2)将坯样e破碎研磨过400~600目筛后置于石墨模具内,然后于温度1000~1500℃下加热烧结4~25min,冷却至室温得到目标物耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料。
本发明的第三目的是这样实现的,所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料在制备兼具热学和力学性能涂层中的应用。
在以往的研究中,关于钽酸盐陶瓷(RETaO4,RE代表稀土元素,例如Y、Sm、Eu、Gd、Dy等)的研究仅仅局限于热障涂层材料和光催化材料,前人的研究并未对其在环境涂层中的应用可能性进行探究,目前关于钽酸钪陶瓷(ScTaO4)的热学和力学性能知之甚少。而本发明制备是致密的钽酸钪陶瓷(ScTaO4)高温陶瓷主要是将其应用于环境涂层材料方面,具有制备方法简单,纯度高,制备耗时短,且制备成本低,适合批量生产,所制备的试样致密度高,气孔及裂纹等缺陷少,因而具有良好的热学和力学性能。本发明烧结的致密钽酸钪陶瓷(ScTaO4)的热扩散系数和热导率低并且在高温下不发生相变,具有很好的高温相稳定性;此外,其还有较高的硬度,能够有效抵抗高速粒子的冲击,对喷涂后的零部件进行有效保护,并与SiC陶瓷具有匹配的热膨胀系数,是潜在的环境涂层材料。
本发明的有益效果为:
(1)高能球磨机混粉后能够混合均匀,经过预烧结及研磨得到细小粒径颗粒后可以有效降低最终烧结温度,能够有效降低能耗并使其在煅烧时各成分间能够充分、均匀地反应。
(2)添加氧化钛和氧化铜作为助烧剂能够提高材料导电性简短加压烧结时间,使反应进行充分。
(3)本实验采用放电等离子烧结,烧结时间短,得到试样密度高且无杂质,相结构稳定。
(4)制备得到的试样纯度高,晶粒尺寸小,气孔率低,从图1中可以看出试样中无杂质,产品制备耗时短,适合进行批量生产。
(5)所制得的钽酸钪陶瓷致密度高且热膨胀系数低,具有良好的高温相稳定性,有望作为新型的高温环境涂层陶瓷材料。
(6)所制得的钽酸钪有较低的热导率,其热膨胀系数与SiC(5~6×10-6 K-1)材料相匹配,如图3和图4所示。
附图说明
图1是本发明实施技术方案所制备的钽酸钪(ScTaO4)高温陶瓷块体的X射线衍射图 (XRD图谱);
图2 是本发明实施技术方案所制备的钽酸钪高温陶瓷块体观测图;
其中,(a)是本发明实施技术方案所制备的钽酸钪高温陶瓷块体的实物图片;
(b)是本发明实施技术方案所制备的钽酸钪高温陶瓷块体的扫描电镜图 (SEM图谱);
图3是本发明实施技术方案所制备的钽酸钪(ScTaO4)高温陶瓷块体检测图;
其中,(a)是本发明实施技术方案所制备的钽酸钪(ScTaO4)高温陶瓷块体的热扩散系数;
(b)是本发明实施技术方案所制备的钽酸钪(ScTaO4)高温陶瓷块体的热导率随温度变化图;
图4是本发明实施技术方案所制备的钽酸钪(ScTaO4)图谱;
其中,(a)是本发明实施技术方案所制备的钽酸钪(ScTaO4)的热膨胀速率图谱;
(b)是本发明实施技术方案所制备的钽酸钪(ScTaO4)的热膨胀系数图谱。
具体实施方式
下面结合实施例和附图对本发明作进一步的说明,但不以任何方式对本发明加以限制,基于本发明教导所作的任何变换或替换,均属于本发明的保护范围。
本发明所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料是以氧化钪、五氧化二钽、氧化钛和氧化铜为原料制备得到,所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料致密度为99%,热扩散系数为0.6~2.6 mm2/s (25~900℃),热导率为2.6~8.0 W.m-1.K-1 (25~900℃),硬度为10 GPa,且在温度25~1400℃下均不发生相变。所述的氧化钪、五氧化二钽、氧化钛和氧化铜的摩尔比为1:1:0.05:0.05。
本发明所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料,包括前处理、烧结步骤,具体包括:
A、前处理:将配方配比的原料氧化钪、五氧化二钽、氧化钛和氧化铜混合均匀得到物料a,物料a中加入物料a质量8倍的无水乙醇,然后球磨后得到溶液b;
B、烧结:
1)将溶液b在温度50~100℃干燥5~20h得到粉末c,粉末c研磨过200~400目筛后压制成型得到型坯d,型坯d于温度500~1000℃下烧结5~15h冷却至室温得到坯样e;
2)将坯样e破碎研磨过400~600目筛后置于石墨模具内,然后于温度1000~1500℃下加热烧结4~25min,冷却至室温得到目标物耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料。
A步骤中所述的球磨是在温度30~50℃、球磨机转速150~300r/min下球磨480~720min。
B步骤1)中所述的型坯d是将溶液b在温度80~100℃干燥6~10h得到粉末c,粉末c研磨过300目筛后压制成型得到。
B步骤1)中所述的压制成型是在保压压力10~20Mpa下保压5~10min压制成型。
B步骤2)中所述的加压烧结的温度为1300~1500℃,煅烧的时间为5~20min。
所述的冷却是在惰性气氛下自然冷却。
本发明所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料的应用为所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料在制备兼具热学和力学性能涂层中的应用。
下面以具体实施案例对本发明做进一步说明:
实施例1
称取氧化钪3.0000 g,氧化钽9.6099 g,氧化钛0.0869 g和氧化铜0.0865 g,在无水乙醇中混合后,在高能球磨机中球磨(球磨机的转速为250 r/min,球磨时间为600 min),然后将球磨好的溶液在70 ℃下干燥12 h后过300目筛,然后用模具压制成型(保压压力为20MPa,保压时间为10 min),压制成型后,将其在600 ℃下预烧10 h。
在第一次煅烧原料之后取出试样冷却至室温,把混合料研磨均匀后过500目筛,然后将粉末假如到石墨磨具中,将石墨模具放置于放电等离子烧结炉,加压至200 MPa,在1200 ℃下保压5 min,冷却至室温,即得到所需致密的块状钽酸钪(ScTaO4)高温陶瓷。
本实施例制备得到的块状钽酸钪(ScTaO4)高温陶瓷材料致密度为99%,热扩散系数为0.6~2.6 mm2/s (25~900℃),热导率为2.6~8.0 W.m-1.K-1 (25~900℃),硬度为10 GPa,且在温度25~1400℃下均不发生相变。
Claims (9)
1.一种耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料,其特征在于所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料是以氧化钪、五氧化二钽、氧化钛和氧化铜为原料制备得到,所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料致密度为99%,热扩散系数为0.6~2.6 mm2/s (25~900℃),热导率为2.6~8.0 W.m-1.K-1 (25~900℃),硬度为10 GPa,且在温度25~1400℃下均不发生相变。
2.根据权利要求1所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料,其特征在于所述的氧化钪、五氧化二钽、氧化钛和氧化铜的摩尔比为1:1:0.05:0.05。
3.一种权利要求1或2所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料,其特征在于包括前处理、烧结步骤,具体包括:
A、前处理:将配方配比的原料氧化钪、五氧化二钽、氧化钛和氧化铜混合均匀得到物料a,物料a中加入物料a质量8倍的无水乙醇,然后球磨后得到溶液b;
B、烧结:
1)将溶液b在温度50~100℃干燥5~20h得到粉末c,粉末c研磨过200~400目筛后压制成型得到型坯d,型坯d于温度500~1000℃下烧结5~15h冷却至室温得到坯样e;
2)将坯样e破碎研磨过400~600目筛后置于石墨模具内,然后于温度1000~1500℃下加热烧结4~25min,冷却至室温得到目标物耐高温、抗氧化、抗磨损和低热膨胀系数的钽酸钪陶瓷材料。
4.根据权利要求3所述的制备方法,其特征在于A步骤中所述的球磨是在温度30~50℃、球磨机转速150~300r/min下球磨480~720min。
5.根据权利要求3所述的制备方法,其特征在于B步骤1)中所述的型坯d是将溶液b在温度80~100℃干燥6~10h得到粉末c,粉末c研磨过300目筛后压制成型得到。
6.根据权利要求3所述的制备方法,其特征在于B步骤1)中所述的压制成型是在保压压力10~20Mpa下保压5~10min压制成型。
7.根据权利要求3所述的制备方法,其特征在于B步骤2)中所述的加压烧结的温度为1300~1500℃,煅烧的时间为5~20min。
8.根据权利要求3所述的制备方法,其特征在于所述的冷却是在惰性气氛下自然冷却。
9.一种权利要求1或2所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料的应用,其特征在于所述的耐高温、抗氧化、抗磨损和低热膨胀系数钽酸钪陶瓷材料在制备兼具热学和力学性能涂层中的应用。
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110759733A (zh) * | 2019-11-19 | 2020-02-07 | 湘潭大学 | 一种Y0.5Dy0.5Ta0.5Nb0.5O4钽系陶瓷材料及其制备方法 |
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CN113480310A (zh) * | 2021-07-14 | 2021-10-08 | 重庆大学 | 一种高致密度、高介电常数的五氧化二钽基陶瓷及其制备方法 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076901A (en) * | 1988-04-27 | 1991-12-31 | Gec-Marconi Limited | Method of manufacturing perovskite lead scandium tantalate |
CN101260217A (zh) * | 2008-03-28 | 2008-09-10 | 华中科技大学 | 一种复合热释电材料及其制备方法与制备硅基厚膜的方法 |
JP4542792B2 (ja) * | 2004-01-26 | 2010-09-15 | 財団法人ファインセラミックスセンター | 耐酸化材料及び非酸化物系複合材料 |
CN107602120A (zh) * | 2017-08-01 | 2018-01-19 | 昆明理工大学 | 一种致密稀土钽酸盐高温陶瓷的制备方法 |
CN108689708A (zh) * | 2018-05-17 | 2018-10-23 | 韶关学院 | 一种铋掺杂钛钽酸铜巨介电陶瓷材料及制备方法 |
-
2018
- 2018-12-14 CN CN201811536413.6A patent/CN109400155A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076901A (en) * | 1988-04-27 | 1991-12-31 | Gec-Marconi Limited | Method of manufacturing perovskite lead scandium tantalate |
JP4542792B2 (ja) * | 2004-01-26 | 2010-09-15 | 財団法人ファインセラミックスセンター | 耐酸化材料及び非酸化物系複合材料 |
CN101260217A (zh) * | 2008-03-28 | 2008-09-10 | 华中科技大学 | 一种复合热释电材料及其制备方法与制备硅基厚膜的方法 |
CN107602120A (zh) * | 2017-08-01 | 2018-01-19 | 昆明理工大学 | 一种致密稀土钽酸盐高温陶瓷的制备方法 |
CN108689708A (zh) * | 2018-05-17 | 2018-10-23 | 韶关学院 | 一种铋掺杂钛钽酸铜巨介电陶瓷材料及制备方法 |
Non-Patent Citations (1)
Title |
---|
W.L.ZHONG ET AL.: "A NEW FERROELECTRIC CRYSTAL-ScTaO4", 《SOLID STATE COMMUNICATIONS》 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110759733A (zh) * | 2019-11-19 | 2020-02-07 | 湘潭大学 | 一种Y0.5Dy0.5Ta0.5Nb0.5O4钽系陶瓷材料及其制备方法 |
CN110759733B (zh) * | 2019-11-19 | 2022-05-31 | 湘潭大学 | 一种Y0.5Dy0.5Ta0.5Nb0.5O4钽系陶瓷材料及其制备方法 |
CN112939600A (zh) * | 2021-04-30 | 2021-06-11 | 昆明理工大学 | 一种超低温烧结制备纳米晶a4b2o9型铌酸盐陶瓷及其方法 |
CN112979312A (zh) * | 2021-04-30 | 2021-06-18 | 昆明理工大学 | 一种ab2o6型铌酸盐陶瓷及其制备方法 |
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CN113480310A (zh) * | 2021-07-14 | 2021-10-08 | 重庆大学 | 一种高致密度、高介电常数的五氧化二钽基陶瓷及其制备方法 |
CN115141544A (zh) * | 2022-05-23 | 2022-10-04 | 东莞宇隆电工材料有限公司 | 耐高温耐酸腐蚀涂料及漆包线 |
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