Abstract According to the difficulty of establishing mathematical model and the high requirement of control accuracy in the decomposition temperature control system for sand-shaped aluminium oxide,the basic idea and design method of multi-construction control strategy are presented.
Tbe good quality non-roasting top brick with sensible porosity of 17%, volume density of 2. 88g/cm,load test temperture 1560℃(defomation 3%)and resistance to quick heat and quick cold >30 times has be developed The main material of this brick is good quality alumina grog,added in part industrial aluminium oxide powder for strengthening matrix phase,introduced into reasonable quantity of sillimanite and compound M and used high effective complex bond.
Introduction is systematically made about many kinds of preparation techniques of ultrafine alumina powders. The preparation techniques are classified according to gas-phase,liquid-phase and solid-phase methods.
Mechanical Properties and Residual Stress Measurements in Anodic Aluminium Oxide Structures Using Nanoindentation
The influence of the parameter humidity for the most common TLC sorbents (aluminium oxide, silicagel, kieselguhr, polyamide, cellulose, carbon, graphitized carbon black, magnesium hydroxide and magnesium silicate) has been studied.
Aluminium oxide G, silica gel G, and magnesium silicate were used as the adsorbent and formamide, ethylene glycol, and a pH=2.4 buffer as the liquid stationary phase.
Silica gel G and aluminium oxide G were used as the adsorbents while paraffin oil served as the liquid stationary phase in partition chromatography.
Chromatographic investigations of adsorption of some aromatic compounds on aluminium oxide and silica gel from solutions
Preparation of Fine Alumina Powders by Hydrolysis of Aluminum Isopropylate
The dry pressing technique was applied to form green bodies using granules prepared by spray drying both calcined and uncalcined alumina powders.
Ultrasonic attenuation coefficients were observed for commercial-grade alumina powders with different dispersion/agglomeration conditions controlled by the amount of dispersant added or the pH adjustment.
Synthesis of Alumina Powders from Kaolin with and Without Ultrasounds
Alumina nanowires were synthesized on a large-area silicon substrate via simple thermal evaporation of a mixture of aluminum and alumina powders.