Results 51 to 60 of about 31,514 (255)

Preparation of Mullite Fiber Reinforced Mullite Composites

IOP Conference Series: Materials Science and Engineering, 2019
Abstract In this paper, mullite fiber reinforced mullite composites were prepared by stitched structural perform, the silica sol and alumina sol. In order to improve the compatibility of mullite fiber and silica sol matrix, interface coating was made by infiltration. The composites were prepared by the method of liquid phase infiltration,
Qiang Luan, Qihong Wei, Hongsheng Wang, Juan He, Changtao Shao, Wenqiu Gao, Xiaojun Liu, Jiang Shi, Tong Su   +8 more
openaire   +1 more source

Cobalt incorporation in mullite [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2005
Mullite (nominally 3Al_2O_3.2SiO_2) is technologically important material for advanced ceramics applications. Depending on the synthesis procedure, mullite is able to incorporate considerable amounts of transition metal cations [1]. While Cr^3+, Fe^3+ and V^3+ have the strongest tendency of incorporation in mulllite, only low or very low amounts of Fe ...
Kurajica, Stanislav, Gržeta, Biserka, Tkalčec-Čižmek, Emilija, Popović, Jasminka   +3 more
openaire   +3 more sources

A Study on the Wear Behaviour of Monolithic Mullite Materials for Dental Applications

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2021
The aim of this study is to evaluate the potential use of the monolithic mullite samples for the dental applications. For this purpose, at first the monolithic mullite samples obtained by the powder metallurgy method have been characterized by the ...
Perent GÜLER, Burcu ERTUĞ, Nazenin İPEK IŞIKÇI, Alpagut KARA   +3 more
doaj   +1 more source

Ceramic dies selection for electrical resistance sintering of metallic materials [PDF]

, 2019
Processing metallic powders by electrical resistance sintering requires the use of insulating ceramics dies. Selecting the appropriate ceramic material according to the electrical, thermal and mechanical properties is a need.
Andreouli, D., Cintas Físico, Jesús, Gallardo Fuentes, José María, Gómez Cuevas, Francisco de Paula, Montes Martos, Juan Manuel, Oikonomou, Vivi, Torres Hernández, Yadir   +6 more
core   +2 more sources

Corrosion resistance mechanism of postmortem corundum-mullite refractories used in hot stoves

Journal of Asian Ceramic Societies, 2022
Alkali attack of aluminosilicate refractories has been a long-term problem in the industry. In this paper, XRD, SEM, and CT scanning methods were used to analyze the phase and structure characteristics of postmortem corundum-mullite refractory used in ...
Xiu-Hua Zhang, Yong Li, Zhi-Hong Tian, Yang Sun, Chen-Hong Ma, Qing-Yao Zheng   +5 more
doaj   +1 more source

MULLITE AND ITS ISOMORPHIC SUBSTITUTION OVERVIEW

Конденсированные среды и межфазные границы, 2018
The phase diagram of SiO2-Al2O3 is considered. The paper presents an overview of the methods of synthesising mullite, including the calcining of natural aluminosilicates, the Czochralski process (synthesising mullite from melt), the Verneuil process ...
Evgeniya G. Yarotskaya, Pavel P. Fedorov
doaj   +1 more source

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu, Guijian Liu, Hao Yin, Yang Song, Aifang Ding   +4 more
wiley   +1 more source

Mechanical property variation mechanisms of granite subjected to real‐time high temperatures and subsequent cooling treatment

Deep Underground Science and Engineering, EarlyView.
This study investigates the coupled thermo‐mechanical behavior of granite during heating and cooling through a combination of laboratory tests and finite element analysis. The thermal conductivity, mineral composition, mass loss rate, micro‐crack observation, and thermal fracture characteristics of granite under various temperature conditions are ...
Rui Pang, Dehao Meng, Thomas Frühwirt, Hao Liu, Yanan Zhao, Qingyou Zhu, Wengang Dang, Mohamed Ismael, Fei Wang   +8 more
wiley   +1 more source

Corrosion Inhibitory Effects of Mullite in Concrete Exposed to Sulfuric Acid Attack

Corrosion and Materials Degradation, 2020
Prolonged exposure to low pH conditions affects the durability of concrete. In this work, the effect of mullite, aluminum silicate, on the strength and the acid corrosion of mortar and concrete under induced accelerated conditions in sulfuric acid ...
Shima Taheri, G. Delgado, O. Agbaje, P. Giri, S. Clark   +4 more
semanticscholar   +1 more source

Dip coating process: Silicon sheet growth development for the large-area silicon sheet task of the low-cost silicon solar array project [PDF]

The technical and economic feasibility of producing solar cell quality sheet silicon by dip-coating one surface of carbonized ceramic substrates with a thin layer of large grain polycrystalline silicon was investigated.
Harrison, W. B., Heaps, J. D., Hendrickson, G., Maciolek, R. B., Nelson, L. D., Peterson, A. A., Schuller, T. L., Scott, M. W., Wolner, H. A., Zook, J. D.   +9 more
core   +7 more sources