【摘 要】
：
Using Al(NO3)3·9H2O, NH4Al(SO4)2·12H2O, Y(NO3)3 as mother salts, and urea as precipitant, YAG nano-powders were synthesized by microwave homogeneous precipita
【机 构】
：
School of Materials Science and Engineering
论文部分内容阅读
Using Al(NO3)3·9H2O, NH4Al(SO4)2·12H2O, Y(NO3)3 as mother salts, and urea as precipitant, YAG nano-powders were synthesized by microwave homogeneous precipitation. The composition, morphology, and phase transformation of precursor were analyzed by IR, XRD and TEM. The size distribution of YAG powders was characterized using laser diffraction method. The results show that sulfate ions influence the dispersion, composition and morphology of the YAG precursors. The addition of moderate sulfate ions can produce YAG powders with nano size and excellent dispersion at 1100 ℃.
其他文献
各种病因所致关节软骨细胞破坏、损伤临床多见，由于关节软骨细胞是增殖能力极弱的终末分化细胞，靠细胞自身增殖修复关节软骨面十分困难。国内外学者对软骨细胞组织工程进行了大
据相关研究报道，中国成人糖尿病患病率约为9.7%［1］，已经成为威胁人类生命健康的常见病、多发病。糖尿病膀胱病（ diabetic cystopathy，DCP）又称糖尿病膀胱功能障碍（DBD），或者糖尿病神经
夜间血压通常指第1天22：00至第2天6：00之间的血压水平［1］。2013年欧洲心脏病学会［2］高血压指南及2010年《中国高血压防治指南》［3］指出夜间（或睡眠）收缩压≥120 mmHg（1 mmHg =0.133 kPa）
糖尿病肾病（diabetic nephropathy，DN）是糖尿病常见的慢性微血管并发症之一，DN 不但是终末期肾功能衰竭的主要原因，而且也增加了心血管疾病的患病率和病死率。DN的发病机制至今尚
粒细胞肉瘤（granulocytic sarcoma，GS）又称髓细胞肉瘤，是幼稚细胞形成的实体性恶性肿瘤，常继发于急性髓系白血病（AML），多见于儿童和青少年，常累及扁骨和长骨、肝、脾、淋巴结、乳腺、
目的：研究“中医慢病临床科研体系及其成果转化应用模式研究”项目在数据管理方面的科学性、合理性，为本项目的后续工作改进提供参考。方法依据国内外有关临床研究数据管理工作
The microstructures and mechanical properties of hot rolled AZ31 Mg alloy sheets were studied to understand the microstructure evolution during AZ31 Mg alloy ho
In order to improve the stress corrosion cracking(SCC) resistance of 7A05Al alloy, four different heat treatment processes were performed. After the heat treatm
Multi-wall carbon nanotubes (MWNTs) have high mechanical properties and are considered a kind of realistic reinforcement for polymers, ceramics and metals. The
The effects of different processing techniques on the microstructure and compressive properties of NiAl-28Cr-5.5Mo-0.5Hf alloys were evaluated. These processing