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Studies of thermodynamic, electric and magnetic properties were conducted on the (KxSr1-x)CrOz, x = 0.10, 0.15 and 0.50system; adjusted for different crystal sizes (polycrystalline, nano-crystalline and single crystals). For polycrystals, a solid-statereaction method was used (room temperature, TR, up to 665 °C). Nano-crystals, a crushing technique with a mechanical mortar wereprocessed at TR. Single crystals were acquired, through fusion method starting from polycrystals pre-manufactured (665 °C) over900 °C. For the methods described above, they all were worked at atmospheric pressure. Studying the thermodynamic in the crystalsmixture were obtained by TGA (thermogravimetric analysis) and DSC (differential scanning calorimetry). Powder XRD (X-raydiffraction) in the manual grinding mixture a SrCO3 solid solution, at TR was detected. When increasing the temperature, a solidsolution of K2Sr(CrO4)2 is formed. By HRTEM (high-resolution transmission electronic microscope), crystal sizes 4-12 nm were seen.(K0.50Sr0.50)CrOz composition presents a weak ferromagnetic and an insulating behavior.
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篇名 Study and Characterization of (KxSr1-x)CrOz, x = 0.10-0.50System
来源期刊 材料科学与工程:中英文B版 学科 工学
关键词 SOLID-STATE reaction solid solutions TGA-DSC XRD HRTEM magnetic behavior
年,卷(期) 2018,(4) 所属期刊栏目
研究方向 页码范围 150-160
页数 11页 分类号 TB
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SOLID-STATE
reaction
solid
solutions
TGA-DSC
XRD
HRTEM
magnetic
behavior
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材料科学与工程:中英文B版
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2161-6221
武汉洪山区卓刀泉北路金桥花园C座4楼
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