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Barium strontium titanate ceramic material and preparation method thereof
The invention relates to the field of material science, and provides a barium strontium titanate ceramic material and a preparation method thereof. The preparation method comprises the following steps: S1, mixing barium carbonate, strontium carbonate and titanium dioxide to synthesize barium titanate and strontium titanate powder; S2, preparing titanium dioxide sol; S3, uniformly mixing the titanium dioxide sol obtained in the step S2 with the strontium titanate powder obtained in the step S1, and carrying out drying to obtain xerogel; S4, putting the xerogel powder obtained in the step S3 into a hydrothermal reaction kettle, subjecting the xerogel of a coating layer to reacting under the conditions of high temperature and high pressure to generate titanium dioxide nanoparticles, and drying a sample obtained after a hydrothermal reaction for later use; and S5, proportionally mixing the barium titanate powder prepared in the step S1 and the titanium dioxide coated strontium titanate powder prepared in the step S4, conducting pressing into a mixed-phase ceramic biscuit, and sintering the mixed-phase ceramic biscuit in a sintering furnace at different temperatures to obtain the finalceramic material. The method is simple to operate, and the prepared ceramic material has high dielectric constant temperature stability.
本申请涉及材料科学领域，提供了一种钛酸锶钡陶瓷材料及其制备方法。其中，制备方法包括如下步骤：S1将碳酸钡、碳酸锶与二氧化钛混合，合成钛酸钡与钛酸锶粉体；S2制备二氧化钛溶胶；S3将步骤S2得到的二氧化钛的溶胶与步骤S1得到的钛酸锶粉体混合均匀，烘干制得干凝胶；S4将步骤S3得到的干凝胶粉体放入水热反应釜中在高温高压条件下使包覆层的干凝胶通过反应生成二氧化钛纳米颗粒，将水热反应后的样品烘干备用；S5将步骤S1制备的钛酸钡粉体与步骤S4制备的二氧化钛包覆钛酸锶粉体按比例混合，压制成混相陶瓷素坯，置于烧结炉中在不同温度下烧结得到最终的陶瓷材料。本申请的方法操作简单，所制备陶瓷材料具有较高的介电常数温度稳定型。
Barium strontium titanate ceramic material and preparation method thereof
The invention relates to the field of material science, and provides a barium strontium titanate ceramic material and a preparation method thereof. The preparation method comprises the following steps: S1, mixing barium carbonate, strontium carbonate and titanium dioxide to synthesize barium titanate and strontium titanate powder; S2, preparing titanium dioxide sol; S3, uniformly mixing the titanium dioxide sol obtained in the step S2 with the strontium titanate powder obtained in the step S1, and carrying out drying to obtain xerogel; S4, putting the xerogel powder obtained in the step S3 into a hydrothermal reaction kettle, subjecting the xerogel of a coating layer to reacting under the conditions of high temperature and high pressure to generate titanium dioxide nanoparticles, and drying a sample obtained after a hydrothermal reaction for later use; and S5, proportionally mixing the barium titanate powder prepared in the step S1 and the titanium dioxide coated strontium titanate powder prepared in the step S4, conducting pressing into a mixed-phase ceramic biscuit, and sintering the mixed-phase ceramic biscuit in a sintering furnace at different temperatures to obtain the finalceramic material. The method is simple to operate, and the prepared ceramic material has high dielectric constant temperature stability.
本申请涉及材料科学领域，提供了一种钛酸锶钡陶瓷材料及其制备方法。其中，制备方法包括如下步骤：S1将碳酸钡、碳酸锶与二氧化钛混合，合成钛酸钡与钛酸锶粉体；S2制备二氧化钛溶胶；S3将步骤S2得到的二氧化钛的溶胶与步骤S1得到的钛酸锶粉体混合均匀，烘干制得干凝胶；S4将步骤S3得到的干凝胶粉体放入水热反应釜中在高温高压条件下使包覆层的干凝胶通过反应生成二氧化钛纳米颗粒，将水热反应后的样品烘干备用；S5将步骤S1制备的钛酸钡粉体与步骤S4制备的二氧化钛包覆钛酸锶粉体按比例混合，压制成混相陶瓷素坯，置于烧结炉中在不同温度下烧结得到最终的陶瓷材料。本申请的方法操作简单，所制备陶瓷材料具有较高的介电常数温度稳定型。
Barium strontium titanate ceramic material and preparation method thereof
钛酸锶钡陶瓷材料及其制备方法
JIN DENGREN (author) / GUO XIAOXIAO (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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