【摘 要】
：
Recently yttrium aluminum garnet(YAG)has received much attention due to its excellent optical and mechanical properties.Untill now,YAG powders are mostly sy
【机 构】
：
State Key Lab of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Tech
【出 处】
：
The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会)
论文部分内容阅读
Recently yttrium aluminum garnet(YAG)has received much attention due to its excellent optical and mechanical properties.Untill now,YAG powders are mostly synthesized by the solid-state reaction between metal oxides or wet-chemical routes using conventional heat treatment.In this paper,we firstly suggest that field rapid synthesis technique is a good method to obtain fine and single-phase YAG powders with the heating rate of 100℃/min using citric acid as fuel and nitrate as oxidizer.Based on the phase analysis,pure hexagonal YAlO3(YAH)firstly crystallizes between 800℃ and 820℃ from amorphous oxide.And then,the YAH phase transforms to YAG during 830-900℃.
其他文献
pinel transparent ceramics,such as aluminum oxynitride(γ-AlON)and magnesium aluminate(MgAl2O4),are regarded as important candidates for sapphire in many ap
应用文写作能力是当代大学生必需具备的能力之一,也是应用文写作教学的主要任务。本文主要论述在教学过程中要有所侧重地选择教学内容,更好地实现应用文的实用性价值。
Appl
植被是陆地表面一种很重要的土地覆盖类型，在地表与大气间的物质能量交换中起着极为重要的作用，叶面积指数LAI是描述植被长势的关键参数，精确反演LAI是提高遥感作物估产精度、准
本文针对前人在侧耳属分类研究中未曾将中国的白灵菇和典型的Pleurotus nebrodensis进行比较分析的缺陷,对来自中国的白灵菇菌株和来自欧洲的Pleurotus nebrodensis, Pleurot
摘要：随着时代的进步和社会的发展，微课教学在现在高中英语教学中得到普遍应用，由于其能够广泛提升学习兴趣，更好地完成教学任务而受到很多教师和学生的欢迎。用微课点燃学生英语自主学习的火焰就是点燃学习的兴趣，点燃求知的欲望。笔者主要借微课的特点对高中英语自主学习提出浅薄的看法。 关键词：微课；高中英语；自主学习 中图分类号：G632.0 文献标识码：A 文章编号：1992-7711（2017）02-
Co-precipitated from related chlorides zirconia-yttria(8%mol.)gel subjected to hydrothermal treatment at 240℃ for 4h resulted in the solid solution powder
陆面温度对了解地表水循环、能量循环等有着重要意义,但由于混合像元的普遍存在,像元平均温度的概念用于陆地表面存在不确定性,对组分温度的研究更有利于深入像元内部,对蒸散
Transparent aluminum oxynitride(AlON)ceramics were fabricated by hot isostatic pressing technology at 1900℃ for 2h under 190MPa argon atmosphere,using as-p
紫花苜蓿是世界上非常重要的牧草之一。由于近年来土壤盐渍化程度的加重,使苜蓿大幅减产,培育高耐盐性苜蓿新品种就显得至关重要。目前利用转基因技术能够快速有效的获得抗盐苜蓿新品种。SsNHXI基因是来源于盐地碱蓬的一个编码Na+/H+逆向转运蛋白的基因,其可将Na+区隔到液泡中,从而提高植物的耐盐性。近几年研究还发现,解旋酶在植物抗逆性方面也起着至关重要的作用。PDH45是来源于豌豆的一种DNA解旋酶,
近年来，无人机在军事及救灾方面作用凸显。无论是军事目标打击、侦察追踪还是地震海啸的救灾减灾，无人机快速、灵活、机动的优势彰显无遗。因此，无人机作为一种遥感平台，也日益受