查询词典 boehmite

The characteristic length of the products was 60 nm and the diameter of them is about 2-5 nm. By the comparative experiments, it could be concluded that the multiporous structure of AAO was the key reason for synthesizing boehmite nanowires by this method.

分析了反应过程及水热反应温度和时间对勃姆石纳米线形貌的影响，并通过对比实验表明AAO模板的纳米多孔结构是水热反应生成勃姆石纳米结构的必要条件和主要原因。

The methods of preparing stable boehmite sol and zirconium hydroxide sol by anionic exchange method using inorganic compounds as raw materials were investigated in this dissertation,and forming-membrane capability of the sols were also investigated on the base of the it.

本论文主要研究了以无机盐为原料，采用离子交换溶胶-凝胶法制备稳定勃姆石溶胶和氢氧化锆溶胶的方法，并在此基础上对溶胶的成膜性进行研究。

These original particles retained their respective structures and had profound effect on pore size distribution of γ Al 2O 3 converted from pseudoboehmites upon calcination at above 300℃, Method for distinguishing among amorphous pseudoboehmite and boehmite were discussed.

这些初始粒子保留它们的相应结构，并对拟薄水铝石在 30 0℃以上焙烧转化为γ Al2 O3的孔分布有显著影响。

These experiments use a raw material-pseudo boehmite gel from Wenzhou JingJing Aluminum Oxide Co.

本论文实验使用同一种物料-温州精晶氧化铝有限公司生产的拟薄水软铝石水凝胶。

DTA and TGA show that boehmite decomposes at 400500℃, and there are no thermal change in pure alumina gel, pure silica gel and composite gels beyond 500-600℃.

DTA和TGA表明，不论单组分膜还是复合膜，在400-500℃左右发生勃姆石的分解，500-600℃以后没有明显的热变化。

The high level of Al(subscript 2)O(subscript 3) in the fly ash is yielded during the transformation and decomposition of kaolinite and boehmite in the feed coal at a high temperature, commonly between 950~1200℃ Very low level (1.9%) of quartz in all minerals of the coal has correspondingly elevated the Al2O3:SiO2 ratio of the fly ash up to 1.50, which is three times of common fly ash in China.

粉煤灰中高Al2O3含量来源于煤中丰富的高岭石和勃姆石矿物在电厂高温下的转化和分解产物；石英仅占煤中矿物组分的1.9%，也相应地提高了粉煤灰中的Al2O3/SiO2：质量比，使得这一比值达到1.50，是常见粉煤灰的3倍左右。

The production of the reaction was boehmite . AlOOH polymerized with one another to form the core of the colloidal particle around which the ions in the sol were attached to form the double electric layer.

首次研制成功了粉末表面涂层陶瓷的硬质合金刀具材料FTC1、FTC2和FTWC1(W，TiC基，性能尤其是高温性能均比未进行粉末涂层的材料有明显提高。

Alumina ceramic was formed after gelling and solidify using boehmite as a binder.

探讨了利用拟薄水铝石作为粘结剂，胶凝固化后成型氧化铝陶瓷。

The composite membranes with different ratio of Al〓O〓 to SiO〓 are composed of amorphous matter or amorphous matter and γ-Al〓O〓 when sintered at 600℃. The composite membrane with mullite composition go thrsought the following phase transition as the temperature rising from 200℃ to 1100℃: amorphous matter and boehmite (200℃)→amorphous matter and γ-Al〓O〓(4001000℃)→mullite and α-Al〓O〓.

经热处理后不同化学组成的复合陶瓷膜由无定形态或者无定形态和γ-Al〓O〓组成，具有莫来石化学成分的复合膜随着烧结温度的升高，其组成分别为无定形态和勃姆石（200℃）、无定形态和γ-Al〓O〓（400-1000℃），并在1100℃时析出莫来石和α-Al〓O〓。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。