高辐射率红外陶瓷材料的制备及性能研究

发布时间：2018-01-05 15:19

本文关键词：高辐射率红外陶瓷材料的制备及性能研究　出处：《耐火材料》2016年04期 　论文类型：期刊论文

【摘要】：为了获得高辐射率的红外陶瓷材料,以分析纯的氧化铁、氧化钴、氧化铜、碳酸锰、氧化铋、碳酸镁粉末和粒度≤0.1 mm的工业纯的滑石和高岭土等为原料,采用高温固相法合成尖晶石型铁氧体和堇青石粉体,通过二者复合制备了过渡金属氧化物固溶于堇青石结构的高辐射率红外陶瓷材料,考察了尖晶石型铁氧体加入量(w)为0、10%、20%、30%、40%时对红外陶瓷材料的结构和性能的影响。采用XRD和FTIR分别对样品进行物相和红外吸收率表征,同时采用红外发射率测量仪测试了样品的红外发射率。结果表明:采用高温固相法合成了复合型尖晶石,而且随尖晶石型铁氧体的引入,Fe~(3+)、Cu~(2+)、Mn~(2+)等过渡金属离子固溶于堇青石的晶格中,替代了部分Mg~(2+)的位置,使堇青石晶相趋于不完整,晶体结构无序度增加,红外陶瓷材料在8~14和1~22μm波段的发射率增大。当尖晶石型铁氧体含量为40%(w)时,在8~14μm波段的发射率可达0.955,1~22μm波段发射率为0.857。
[Abstract]:In order to obtain high emissivity infrared ceramic material, using pure iron oxide, cobalt oxide, copper oxide, bismuth oxide, manganese carbonate, magnesium carbonate powder and particle size less than 0.1 mm in industrial pure talc and kaolin as raw materials by high temperature solid phase synthesis method of spinel ferrite and cordierite powder, by two compound preparation of high emissivity infrared ceramic materials of transition metal oxide solid solution in the cordierite structure, investigated the spinel ferrite amount of (W) 0,10%, 20%, 30%, affect the structure and performance of the infrared ceramic material 40%. Using XRD and FTIR respectively. The samples were phase the infrared absorption characterization, and the infrared emissivity measurement sample infrared emissivity test. The results showed that the composite spinel synthesized by high temperature solid phase method, and with the introduction of spinel ferrites, Fe~ (3+), Cu~ (2+), Mn~ (2+) transition The metal ions dissolved in the cordierite lattice, replacing part of Mg~ (2+) position, the cordierite crystal tends to be incomplete, the crystal structure of disorder degree increase, increase in emissivity of infrared ceramic materials 8~14 and 1~22 m wavelength. When the ferrite content was 40% (W). In the 8~14 m wavelength emission rate of 0.955,1~22 m wavelength emission rate of 0.857.

【作者单位】：华北理工大学材料科学与工程学院河北省无机非金属材料重点实验室;
【基金】：国家自然科学基金项目(51302064)
【分类号】：TQ174.1
【正文快照】： 随着工业技术的发展,能源的供求矛盾日益加深。红外陶瓷由于在红外方面的特定性能,在国民经济各个方面的应用正在日益增长和发展[1-2]。红外辐射材料作为一种新型节能材料,将其涂敷在基体材料表面,不仅能起到良好的节能效果,同时对基体材料具有良好的保护作用,既延长其使用寿

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