CN105503189A - 一种铁酸钇陶瓷的制备方法 - Google Patents

一种铁酸钇陶瓷的制备方法 Download PDF

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CN105503189A
CN105503189A CN201510985431.2A CN201510985431A CN105503189A CN 105503189 A CN105503189 A CN 105503189A CN 201510985431 A CN201510985431 A CN 201510985431A CN 105503189 A CN105503189 A CN 105503189A
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江国健
段丽
顾瑾瑛
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Shanghai Institute of Technology
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Abstract

本发明一种铁酸钇陶瓷的制备方法，称取YFeO3粉料、氧化饵和去离子水，所述的YFeO3粉料、氧化饵和去离子水的质量比为100:0.5~2:100~210，将YFeO3粉料、氧化饵和去离子水放入球磨罐中球磨混合；球磨后的粉料放置于干燥箱中干燥；添加聚乙烯醇，所述的聚乙烯醇添加量为粉料质量的1~2%，混合均匀；将粉体加入到一个模具中，压片成型，所述的压片成型的压力为5~10MPa；冷等静压，制成陶瓷素坯，所述的等静压压力为100~200MPa；将陶瓷素坯烧结，所述的烧结温度为1250~1450℃，得到铁酸钇陶瓷。本发明通过氧化饵为烧结助剂来制备铁酸钇陶瓷，其密度高，适合大规模工业生产。

Description

一种铁酸钇陶瓷的制备方法
技术领域
本发明属于先进陶瓷领域，涉及一种陶瓷的制备方法，具体来说是一种铁酸钇陶瓷的制备方法。
背景技术
作为钙钛矿结构ReFeO3（Re代表稀土元素）代表，YFeO3表现出了许多有趣的物理和化学性能，在快速磁光开关、光点空间位置测量技术和磁光传感器等磁光器件、光催化、固态氧化物燃料电池、化学传感器和半导体等领域具有广泛的应用前景。
近年来，YFeO3离子掺杂得到了广泛的研究，如其场诱导的电子自旋方向调整、介电弛豫、磁相互作用、磁性能等。要测试材料的这些性能，需要将YFeO3粉体制成陶瓷材料。但据我们所知，目前开展YFeO3陶瓷的研究不多。
发明内容
针对上述现有技术存在的技术问题，本发明提供了一种铁酸钇陶瓷的制备方法，所述的这种制备方法解决了现有技术中制备铁酸钇陶瓷困难的技术问题。
本发明提供了一种铁酸钇陶瓷的制备方法，包括以下步骤：
1)称取YFeO3粉料、氧化饵和去离子水，所述的YFeO3粉料、氧化饵和去离子水的质量比为100:0.5~2:100~210，将YFeO3粉料、氧化饵和去离子水加入球磨罐中球磨混合；
2)球磨后的粉料放置于干燥箱中干燥；
3)将粉体加入到一个模具中，压片成型，所述的压片成型的压力为5~10MPa；
4)冷等静压，制成陶瓷素坯，所述的等静压压力为100~200MPa；
5)将陶瓷素坯烧结，所述的烧结温度为1250~1450℃，得到铁酸钇陶瓷。
进一步的，所述的聚乙烯醇为质量百分比浓度为2~5%的溶液。
进一步的，按照球:料=1~4:1的比例进行湿法球磨，球为烧结致密的YFeO3球。
本发明和已有技术相比，其技术进步是显著的。本发明通过氧化饵为烧结助剂来制备铁酸钇（YFeO3）陶瓷，获得的YFeO3陶瓷密度高，适合大规模工业生产，为开展其性能研究和应用打下基础。
附图说明
图1是实施例1制备的铁酸钇（YFeO3）陶瓷的扫描电镜图。
具体实施方式
下面通过结合具体实施例和附图对本发明进一步阐述，但并不限制本发明。
实施例1
一种氧化饵为烧结助剂的铁酸钇（YFeO3）陶瓷的制备方法，具体包括如下步骤：
将100gYFeO3粉料、0.5g氧化饵放入球磨罐中球磨混合，去离子水的质量为100g，按球:料:水=1:1的比例进行湿法球磨，球磨完毕后，将粉体干燥，然后加入占粉料质量1%的PVA（质量浓度为5%）做粘结剂，并在研钵中混合均匀，然后将粉体装入模具中，在10MPa的压力下压片成型，再100MPa冷等静压下制成具有一定强度的陶瓷素坯。最后放入马弗炉进行烧结，烧结温度为1450oC，得到YFeO3陶瓷，陶瓷的致密度达到94.90%，其SEM图如图1所示。
实施例2
一种氧化饵为烧结助剂的铁酸钇（YFeO3）陶瓷的制备方法，具体包括如下步骤：
将100gYFeO3粉料、1g氧化饵放入球磨罐中球磨混合，去离子水的质量为200g，按球:料:水=3:1的比例进行湿法球磨，球磨完毕后，将粉体干燥，然后加入占粉料质量1.5%的PVA（质量浓度为4%）做粘结剂，并在研钵中混合均匀，然后将粉体装入模具中，在8MPa的压力下压片成型，再150MPa冷等静压下制成具有一定强度的陶瓷素坯。最后放入马弗炉进行烧结，烧结温度为1400oC，得到YFeO3陶瓷，陶瓷的致密度达到94.75%。
实施例3
一种氧化饵为烧结助剂的铁酸钇（YFeO3）陶瓷的制备方法，具体包括如下步骤：
将100gYFeO3粉料、2g氧化饵放入球磨罐中球磨混合，去离子水的质量为210g，按球:料=4:1的比例进行湿法球磨，球磨完毕后，将粉体干燥，然后加入占粉料质量2%的PVA（质量浓度为2%）做粘结剂，并在研钵中混合均匀，然后将粉体装入模具中，在5MPa的压力下压片成型，再200MPa冷等静压下制成具有一定强度的陶瓷素坯。最后放入马弗炉进行烧结，烧结温度为1250oC，得到YFeO3陶瓷，陶瓷的致密度达到92.06%。
上述实施例的内容仅为本发明构思下的基本说明，而依据本发明的技术方案所作的任何等效变换，均应属于本发明的保护范围。

Claims (3)

1.一种铁酸钇陶瓷的制备方法，其特征在于包括以下步骤：
1）称取YFeO3粉料、氧化饵和去离子水，所述的YFeO3粉料、氧化饵和去离子水的质量比为100:0.5~2:100~210，将YFeO3粉料、氧化饵和去离子水加入球磨罐中球磨混合；
2）球磨后的粉料放置于干燥箱中干燥；
3）添加聚乙烯醇，所述的聚乙烯醇添加量为粉料质量的1~2%，混合均匀；
4）将粉体加入到一个模具中，压片成型，所述的压片成型的压力为5~10MPa；
5）冷等静压，制成陶瓷素坯，所述的等静压压力为100~200MPa；
6）将陶瓷素坯烧结，所述的烧结温度为1250~1450℃，得到铁酸钇陶瓷。
2.根据权利要求1所述的一种铁酸钇陶瓷的制备方法，其特征在于：所述的聚乙烯醇为质量百分比浓度为2~5%的溶液。
3.根据权利要求1所述的一种铁酸钇陶瓷的制备方法，其特征在于：按照球:料质量比=1~4:1的比例进行湿法球磨，球为烧结致密的YFeO3球。
CN201510985431.2A 2015-12-25 2015-12-25 一种铁酸钇陶瓷的制备方法 Expired - Fee Related CN105503189B (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113754422A (zh) * 2020-06-01 2021-12-07 厦门稀土材料研究所 一种多孔高熵铁酸稀土陶瓷材料及其制备方法与应用
CN113754422B (zh) * 2020-06-01 2023-08-29 厦门稀土材料研究所 一种多孔高熵铁酸稀土陶瓷材料及其制备方法与应用

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