氧化铝

The study discusses how the factors such as calcination temperature,time,the kind of additive and the process after calcination influenced on the content of the alumina in the calcined products,and confirmed the production method.

通过对工业氢氧化铝煅烧试验，探讨了煅烧温度、时间、添加剂种类和煅烧产物后处理等对煅烧产品中氧化钠含量的影响，确定了高温低钠氧化铝的生产方法。

Objective:To study the effects of alumina particle-size on mechanical properties of alumina-glass composite.

目的：研究氧化铝颗粒大小对氧化铝玻璃复合体力学性能的影响。

The content of alumina in the porcelain tiles was increased to 28% in the paper.

本文打破瓷质抛光砖坯体中常规氧化铝含量17%～22%的界限，将坯体中的氧化铝含量提高到28%左右。

Decomposition of supersaturated sodium aluminate solution is one of the most important procedures in the production of alumina.

过饱和铝酸钠溶液分解是氧化铝生产过机理的研究是氧化铝生产过程的重要基础问题。

Based on this, the preliminary division of the level and structure of alumina production system is made,meanwhile,the research status and de...

在此基础上，本文将尝试对氧化铝生产系统的层次和结构做初步的划分，并对系统节能技术在氧化铝生产中的研究现状与发展趋势做一些探讨。

The principal ore of aluminum,composed mainly of hydrous aluminum oxides and aluminum hydroxide s.

铝土矿铝的基本矿石，由含水的氧化铝和氢氧化铝组成

Results:The strength and fracture toughness of nanometre alumina-glass composite were 358.2 MPa, 2.38 MPam1/2 respectively.

结果：用纳米颗粒氧化铝制作的氧化铝玻璃复合体强度(358.2 MPa)、断裂韧性(2.38 MPam1/2)显著低于微米氧化铝玻璃复合体的强度(432.2 MPa)和断裂韧性(5.12 MPam1/2)。

Mesoporous alumina represents a very interesting molecular sieve exhibiting a narrow pore size distribution and relatively large pore size compared with conventional alumina.

和传统的氧化铝相比，介孔氧化铝具有狭窄的孔径分布和较大的孔径。但作为固体酸催化剂，氧化铝表面的酸性不是很强。

In this work,α-Al〓O〓, form the high temperature calcined product of Al 〓 by Debye method, was used as raw material to fabricate alumina ceramics. The seed crystal was added by ball milling of pure α-Al〓O〓 and the alumina ceramics with elongated grains has been experimentally fabricated.

本研究通过拜耳法制备的工业氢氧化铝粉经高温煅烧过程分解转相得到高温稳定的α-氧化铝粉作为制备氧化铝陶瓷的原料，利用球磨过程的磨耗向氢氧化铝粉中引入高纯氧化铝作为晶种，制备出了具有长柱状晶的氧化铝陶瓷。

One of them is based on etched porous alumina and carbon-gold-carbon compound film. The alumnia film surface is composed of rows of valleys with diameter of about 300 nm, and is realized by etching porous alumina in diluted phosphorous acid.

第一种阴极采用基于多孔氧化铝和无定形碳的双层传导薄膜，其中氧化铝薄膜的表面具有横向尺寸为300 nm的特殊凹陷结构，是对常规多孔氧化铝薄膜进行腐蚀形成的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。