纳米Sr_(1-x)Ca_xTiO_3粉体制备及性能表征

稀有金属材料与工程, 2009, 38(z2): 19-21.

纳米Sr_(1-x)Ca_xTiO_3粉体制备及性能表征

毛杜松 ^1, , 刘维良 ^2, , 林幸 ^3, , 唐春宝 ^4,

1.景德镇陶瓷学院,江西,景德镇,333001

2.景德镇陶瓷学院,江西,景德镇,333001

3.景德镇陶瓷学院,江西,景德镇,333001

4.景德镇陶瓷学院,江西,景德镇,333001

基金项目: 国家技术创新项目(08C26213600940)

关键词： Sr_(1-x)Ca_xTiO_3 , 柠檬酸前驱体法 , 纳米晶

Preparation and Characterization of Nano-Sized Sr_(1-x)Ca_xTiO_3 Powders

Mao Dusong ^1, , Liu Weilang ^2, , Lin Xing ^3, , Tang Chunbao ^4,

1.景德镇陶瓷学院,江西,景德镇,333001

2.景德镇陶瓷学院,江西,景德镇,333001

3.景德镇陶瓷学院,江西,景德镇,333001

4.景德镇陶瓷学院,江西,景德镇,333001

Keywords： Sr_(1-x)Ca_xTiO_3 , citrate precursor method , nanocrystalline

采用改良的柠檬酸前驱体法制备纳米Sr_(1-x)Ca_xTiO_3(x=0.1, 0.2, 0.3, 0.4)粉体.借助于TG/DSC、XRD、TEM等表征手段对所得粉体的物相、形貌、颗粒尺寸进行了分析和测试.研究表明,经900 ℃煅烧7 h制备出的Sr_(1-x)Ca_xTiO_3粉体平均粒度为50 nm,结晶度高、形貌规整均一,并且无其它杂相.

A modified citrate precursor method was used to synthesize nanocrystalline Sr_(1-x)Ca_xTiO_3(x=0.1, 0.2, 0.3, 0.4) powders. TG/DTA, XRD and TEM was used to examine the decomposition behaviour of the precursor and the crystalline phase, and morphology and particle size of the powders. The results indicated that single-phase, slight agglomerated and well-crystallized Sr_(1-x)Ca_xTiO_3 nanopowders with particle size around 50 nm could be obtained after calcining at 900 ℃ for 7 h.

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