CN108585808A - 一种与钢铁熔体润湿性良好的改性zta复相陶瓷的制备方法 - Google Patents
一种与钢铁熔体润湿性良好的改性zta复相陶瓷的制备方法 Download PDFInfo
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- CN108585808A CN108585808A CN201810285727.7A CN201810285727A CN108585808A CN 108585808 A CN108585808 A CN 108585808A CN 201810285727 A CN201810285727 A CN 201810285727A CN 108585808 A CN108585808 A CN 108585808A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 49
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 10
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 10
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000011812 mixed powder Substances 0.000 claims abstract description 7
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 8
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(III) oxide Inorganic materials O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 claims description 7
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 7
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 claims description 7
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 5
- 230000036316 preload Effects 0.000 claims description 5
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 238000000975 co-precipitation Methods 0.000 claims description 3
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 3
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 3
- 238000003980 solgel method Methods 0.000 claims description 3
- 238000001513 hot isostatic pressing Methods 0.000 claims description 2
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 16
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- 238000012986 modification Methods 0.000 abstract description 12
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- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 abstract 1
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- 235000015895 biscuits Nutrition 0.000 description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 5
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- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- JQLZABHNCZQFNR-UHFFFAOYSA-J O.[Cl-].[Cl-].[Cl-].[Cl-].Cl.Cl.[Zr+4] Chemical class O.[Cl-].[Cl-].[Cl-].[Cl-].Cl.Cl.[Zr+4] JQLZABHNCZQFNR-UHFFFAOYSA-J 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
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- 229910052804 chromium Inorganic materials 0.000 description 2
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- 239000008367 deionised water Substances 0.000 description 2
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- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 229910052751 metal Inorganic materials 0.000 description 2
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910009253 Y(NO3)3 Inorganic materials 0.000 description 1
- 229910003101 Y(NO3)3·6H2O Inorganic materials 0.000 description 1
- 229910006213 ZrOCl2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
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- 230000003750 conditioning effect Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- -1 yttrium nitrate hexahydrate Chemical class 0.000 description 1
- BXJPTTGFESFXJU-UHFFFAOYSA-N yttrium(3+);trinitrate Chemical compound [Y+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O BXJPTTGFESFXJU-UHFFFAOYSA-N 0.000 description 1
- QBAZWXKSCUESGU-UHFFFAOYSA-N yttrium(3+);trinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Y+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O QBAZWXKSCUESGU-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- IPCAPQRVQMIMAN-UHFFFAOYSA-L zirconyl chloride Chemical compound Cl[Zr](Cl)=O IPCAPQRVQMIMAN-UHFFFAOYSA-L 0.000 description 1
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Abstract
本发明公开一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，属于陶瓷基复合材料和金属基复合材料技术领域，首先利用软化学法制备YSZ粉末，在制备YSZ粉末的过程中加入稀土氧化物，然后干燥并煅烧后与Al2O3、TiO2粉末混合均匀，混合粉末经过预压和压制后进行高温烧结，即可得到与钢铁润湿性良好的改性ZTA复相陶瓷块体，将块体进一步破碎过筛成适当粒径的颗粒后即可用于陶瓷颗粒增强钢铁基复合材料中；本发明制备的改性ZTA复相陶瓷成本低廉，工艺简单，生产效率高，在不降低ZTA颗粒原有韧性的条件下与钢铁熔体的润湿性良好，可直接用于制备陶瓷颗粒增强钢铁基复合材料。
Description
技术领域
本发明涉及一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，属于陶瓷基复合材料和金属基复合材料技术领域。
背景技术
陶瓷金属复合材料由于其兼具陶瓷材料的高硬度、高耐磨性能和金属高强度、良好塑性及韧性，已成为当前国内外科研及产业化领域关注焦点。氧化锆增韧氧化铝陶瓷（ZTA）内部均匀分散的氧化锆能显著提高耐磨件的磨损性能，还可以保证其整体良好韧性，目前已被大规模应用于耐磨材料领域。当前国外相关产品已有工业应用，且进入中国市场并形成垄断。但是ZTA陶瓷与钢铁液的润湿性较差，采用无压铸渗制备ZTA/钢铁复合材料极其困难。与此同时，ZTA/钢铁界面基本为机械结合，结合强度低，复合材料力学性能差，导致复合材料在抗磨损服役过程中的可靠性和耐磨性能急剧下降。上述技术瓶颈亟待突破，提高材料耐磨性能，延长设备使用寿命势在必行。对陶瓷颗粒本身进行改性以提高其与钢铁熔体间的润湿性无疑为实现这一目标提供了一条新途径。根据界面润湿理论，固液两相接触时，参与反应的元素先在界面富集吸附，当吸附量超过了元素所在界面的临界浓度时，界面反应发生，反应产物在固/液界面上形核析出。但是，现有ZTA颗粒中的元素在ZTA颗粒/钢铁熔体的界面处不易富集，是造成润湿性不足的因素之一，从而导致二者间的结合强度不好。
发明内容
针对上述现有技术存在的问题及不足，本发明提供一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，该方法制备的改性ZTA复相陶瓷成本低廉，工艺简单，生产效率高，在不降低原有韧性的条件下与钢铁熔体的润湿性良好，可直接用于制备陶瓷颗粒增强钢铁基复合材料，本发明采用以下技术方案实现。
本发明提供一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，首先利用软化学法制备YSZ粉末，在制备YSZ粉末的过程中加入稀土氧化物，然后干燥并煅烧后与Al2O3、TiO2粉末混合均匀，混合粉末经过预压和压制后进行高温烧结，即可得到与钢铁润湿性良好的改性ZTA复相陶瓷块体，将块体进一步破碎过筛成适当粒径的颗粒后即可用于陶瓷颗粒增强钢铁基复合材料中。
所述软化学法包括化学共沉淀法、溶胶-凝胶法或水热合成法。
所述YSZ粉末中钇的含量为1~8mol%，YSZ粉末占最后得到的复相陶瓷总质量的5~50%。
所述稀土氧化物为Ta2O5、La2O3、CeO2、Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3中的一种或几种的任意比例混合物，粒径为20~500nm，稀土氧化物占最后得到的复相陶瓷总质量的0.1~5%。
所述煅烧温度为500~800℃，煅烧时间为1~6h。
所述Al2O3和TiO2的粒径为0.1~10μm，其中TiO2粉末占复相陶瓷总质量的0.1~5%。
所述预压压力为4~20MPa，预压时间为2~10min。
所述压制为冷等静压或热等静压，压制的压力为150~400MPa，压制时间为1~5min。
所述高温烧结温度为1300~1700℃，烧结时间为1~6h。
本发明的有益效果是：
（1）本发明制备的改性ZTA复相陶瓷，在陶瓷内部加入了易在钢铁熔体表面富集的化学活性高的元素的氧化物，提高了金属液与ZTA陶瓷颗粒的界面反应能力，从而提高其润湿性。
（2）本发明通过ZTA陶瓷颗粒内部加入活性高的高熔点稀土氧化物，在陶瓷颗粒与金属基体间形成界面反应过渡层，解决了因基体与陶瓷颗粒膨胀系数相差太大而引起开裂的问题，增强了陶瓷颗粒与金属基体的结合强度。
（3）本发明制备的改性ZTA复相陶瓷成本低廉，工艺简单，生产效率高，在不降低颗粒原有韧性的条件下与钢铁熔体的润湿性良好，可直接用于制备陶瓷颗粒增强钢铁基复合材料。
附图说明
图1是本发明实施例1步骤1得到的混有Ta2O5的YSZ粉末的SEM图；
图2是本发明实施例1最后得到的改性ZTA复相陶瓷的SEM图；
图3是本发明实施例1最后得到的改性ZTA复相陶瓷和通过常规方法制备得到的ZTA陶瓷与高铬铸铁的润湿角测试照片（a为常规方法制备得到的ZTA陶瓷，b为实施例1最后得到的改性ZTA陶瓷）。
具体实施方式
下面结合附图和具体实施方式，对本发明作进一步说明。
实施例1
本实施例一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，具体步骤如下：
步骤1、采用化学共沉淀法制备5mol% YSZ粉末，首先是将八水氧氯化锆（ZrOCl2·8H2O）和六水硝酸钇（Y(NO3)3·6H2O）按Y2O3:ZrO2的摩尔比为5:95的比例溶于无水乙醇和去离子水的混合溶剂中（无水乙醇和去离子水的体积比为5:1），并加入总量1wt.%的聚乙二醇(PEG)作为分散剂，然后将混合溶液置于恒温水浴锅中，在65℃保温2小时后采用正向滴定的方式制备5mol% YSZ粉末前驱体，按照YSZ粉末占最后得到的复相陶瓷总质量的25 wt.%的比例，在前驱体析出后将最后复相陶瓷质量的2wt.%的Ta2O5加入其中，Ta2O5的粒径为100nm，得到混合物，将混合物放入冷冻干燥机中在-50℃温度下干燥，并在600℃煅烧3h后形成混有Ta2O5的YSZ粉末；
步骤2、在步骤1所得的混有Ta2O5的YSZ粉末中加入Al2O3粉末和TiO2粉末，Al2O3粉末的加入量为最后复相陶瓷质量的70%，TiO2粉末加入量为最后复相陶瓷质量的3wt.%，Al2O3粉末和TiO2粉末的粒径为0.1~1μm，然后将混合粉末在球磨罐中球磨混匀，球磨结束后用旋转蒸发仪干燥；
步骤3、将步骤2所得干燥混合物破碎并用300目的筛网过筛；
步骤4、将步骤3过筛后的粉末用液压机预压成型，预压压力为8MPa，预压时间为4min，然后在冷等静压机中压制，压制压力为300MPa，压制时间为2min得到素坯；
步骤5、将步骤4所得的素坯在1600℃高温下烧结4h，即得到所需的与钢铁熔体润湿性良好的改性ZTA复相陶瓷。
本实施例中步骤1得到的混有Ta2O5的YSZ粉末的SEM如图1所示，从图1中可以看出，Ta2O5氧化物在YSZ粉末中分布均匀，且无明显的区域差异现象；最后得到的改性ZTA陶瓷的SEM图如图2所示，从图2中可以看出，改性ZTA陶瓷块体致密性高，无孔洞出现，且晶粒尺寸较均匀，说明ZTA陶瓷的烧结性能优良；图3为最后得到的改性ZTA陶瓷和通过常规方法制备得到的ZTA陶瓷与高铬铸铁的润湿角测试照片，a为常规方法制备得到的ZTA陶瓷，b为本实施例最后得到的改性ZTA陶瓷，可知ZTA陶瓷改性前，即常规方法制备得到的ZTA陶瓷与高铬铸铁基体的润湿角约120°，当用Ta2O5氧化物对ZTA陶瓷进行改性后，即本实施例最后得到的改性ZTA陶瓷润湿角降低到约109°，表明本实施例得到的ZTA陶瓷颗粒与铁熔体的润湿性得到了提高。
实施例2
本实施例一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，具体步骤如下：
步骤1、采用溶胶-凝胶法制备1mol% 的YSZ粉末，首先使用ZrOCl2·8H2O、Y(NO3)3·6H2O按Y2O3:ZrO2的摩尔比为1:99的比例配制成均匀混合溶液，然后加入总量1wt.%的聚乙二醇(PEG)作为稳定剂并用盐酸调节溶液PH值为0.4，将H2C2O4·2H2O缓慢滴定到混合溶液中直至形成透明溶胶，经陈化处理12h后得到透明凝胶状胶体，继续将H2C2O4水溶液滴入其中，得到不透明悬浊液，按照YSZ粉末占最后得到的复相陶瓷总质量的5 wt.%的比例，在悬浊液形成后将最后复相陶瓷质量的1wt.%的La2O3 (粒径20nm)和最后复相陶瓷质量的4wt.%CeO2(粒径500nm)的加入其中，混匀，最后将混合物放入真空干燥箱中在100℃下干燥24h，800℃煅烧1h后形成混有La2O3和CeO2的YSZ粉末；
步骤2、在步骤1所得的混有La2O3和CeO2的YSZ粉末中加入Al2O3粉末和TiO2粉末，Al2O3粉末的加入量为最后复相陶瓷质量的85 wt.%，TiO2粉末加入量为最后复相陶瓷质量的5wt.%，Al2O3粉末和TiO2粉末的粒径为1~6μm，然后将混合粉末在球磨罐中球磨混匀，球磨结束后用旋转蒸发仪干燥；
步骤3、将步骤2所得干燥混合物破碎并用300目的筛网过筛；
步骤4、将步骤3过筛后的粉末用液压机预压成型，预压压力为4MPa，预压时间为10min，然后在冷等静压机中压制，压制压力为400MPa，压制时间为1min得到素坯；
步骤5、将步骤4所得的素坯在1300℃下烧结6h，即得到所需的与钢铁熔体润湿性良好的改性ZTA复相陶瓷。
实施例3
本实施例一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，具体步骤如下：
步骤1、采用水热合成法制备8mol% 的YSZ粉末，首先称取八水氧氯化锆和六水硝酸钇，按Y2O3:ZrO2的摩尔比8:92混合，用去离子水溶解并过滤，采用反向沉淀法将混合液和浓氨水按照体积比1:1混合、搅拌，浓氨水的浓度为28 wt.%，然后将所得沉淀用去离子水洗涤，制得前驱体，按照YSZ粉末占最后得到的复相陶瓷总质量的50wt.%的比例，将前驱体与最后复相陶瓷质量的0.1wt.%的Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3混合粉末混合，其中Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3的质量比为1:1:1:1:1，Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3的粒径为300nm，将混合物置于高压反应釜中，并添加质量的1%的三乙基胺TEA作为分散剂，最后将混合物放入干燥箱中在100℃下干燥24h，500℃煅烧6h后形成混有Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3的YSZ粉末；
步骤2、在步骤1所得的混有Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3的YSZ粉末中加入Al2O3粉末和TiO2粉末，Al2O3粉末的加入量为最后复相陶瓷质量的49.8wt.%, TiO2粉末加入量为最后复相陶瓷质量的0.1 wt.%，Al2O3粉末和TiO2粉末的粒径为5~10μm，然后将混合粉末在球磨罐中球磨混匀，球磨结束后用旋转蒸发仪干燥；
步骤3、将步骤2所得干燥混合物破碎并用300目的筛网过筛；
步骤4、将步骤3过筛后的粉末用液压机预压成型，预压压力为20MPa，预压时间为2min，然后在冷等静压机中压制，压制压力为150MPa，压制时间为5min得到素坯；
步骤5、将步骤4所得的素坯在1700℃下烧结1h，即得到所需的与钢铁熔体润湿性良好的改性ZTA复相陶瓷。
以上结合附图对本发明的具体实施方式作了详细说明，但是本发明并不限于上述实施方式，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。
Claims (9)
1.一种与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：首先利用软化学法制备YSZ粉末，在制备YSZ粉末的过程中加入稀土氧化物，然后干燥并煅烧后与Al2O3、TiO2粉末混合均匀，混合粉末经过预压和压制后进行高温烧结，即可得到与钢铁润湿性良好的改性ZTA复相陶瓷块体。
2.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述的软化学法包括化学共沉淀法、溶胶-凝胶法或水热合成法。
3.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述YSZ粉末中钇的含量为1~8mol%，YSZ粉末占最后得到的复相陶瓷总质量的5~50%。
4.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述稀土氧化物为Ta2O5、La2O3、CeO2、Nb2O5、Nd2O3、Sm2O3、Gd2O3和Er2O3中的一种或几种的任意比例混合物，粒径为20~500nm，稀土氧化物占最后得到的复相陶瓷总质量的0.1~5%。
5.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述煅烧温度为500~800℃，煅烧时间为1~6h。
6.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述Al2O3和TiO2的粒径为0.1~10μm，TiO2粉末占最后得到的复相陶瓷总质量的0.1~5%。
7.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述预压压力为4~20MPa，预压时间为2~10min。
8.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述压制为冷等静压或热等静压，压制的压力为150~400MPa，压制时间为1~5min。
9.根据权利要求1所述与钢铁熔体润湿性良好的改性ZTA复相陶瓷的制备方法，其特征在于：所述高温烧结温度为1300~1700℃，烧结时间为1~6h。
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| CN114349501A (zh) * | 2022-01-28 | 2022-04-15 | 郑州轻工业大学 | 一种zyto体系复合陶瓷材料及其制备方法 |
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| CN110983153A (zh) * | 2019-12-28 | 2020-04-10 | 苏州再超冶金制品有限公司 | 一种高性能复合陶瓷颗粒增强铁基复合材料 |
| CN111809099A (zh) * | 2020-07-17 | 2020-10-23 | 西安交通大学 | NiCrAl改性氧化物陶瓷增强铁基复合材料及其制备方法和应用 |
| CN115073204A (zh) * | 2021-03-10 | 2022-09-20 | 比亚迪股份有限公司 | 多孔陶瓷及其制备方法、应用、多孔陶瓷组合物前体、电子烟雾化芯和电子烟 |
| CN115073204B (zh) * | 2021-03-10 | 2023-11-14 | 比亚迪股份有限公司 | 多孔陶瓷及其制备方法、应用、多孔陶瓷组合物前体、电子烟雾化芯和电子烟 |
| AU2022224725B2 (en) * | 2021-08-31 | 2023-09-21 | Kunming University Of Science And Technology | Preparation method of in-situ synthesized zirconia toughened alumina (ZTA) ceramic particles-reinforced steel matrix structural composite |
| CN114406258A (zh) * | 2022-01-25 | 2022-04-29 | 华清平耐磨科技(苏州)有限公司 | 铝热还原反应粉末包覆的zta陶瓷颗粒及其制法和应用 |
| CN114349501A (zh) * | 2022-01-28 | 2022-04-15 | 郑州轻工业大学 | 一种zyto体系复合陶瓷材料及其制备方法 |
| CN114349501B (zh) * | 2022-01-28 | 2023-03-24 | 郑州轻工业大学 | 一种zyto体系复合陶瓷材料及其制备方法 |
| CN114921708A (zh) * | 2022-07-20 | 2022-08-19 | 昆明理工大学 | 一种自生zta陶瓷增强铁基复合材料制备方法 |
| CN114921708B (zh) * | 2022-07-20 | 2022-09-27 | 昆明理工大学 | 一种自生zta陶瓷增强铁基复合材料制备方法 |
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