Results 41 to 50 of about 3,096 (300)

Mechanical properties of chemically bonded phosphate refractory castables

Matéria (Rio de Janeiro), 2022
ABSTRACT The knowledge of the phase transformations and the role of different parameters in the performance of phosphate-bonded systems are of utmost importance for the refractory field. The effect of the setting agent, phosphoric acid concentration and additives on the setting time, cold crush strength, hot modulus of rupture, abrasion resistance, and
Adriana Mendes Correa, Modestino Alves de Moura Brito, Sérgio Luiz Cabral da Silva, Vanessa de Freitas Cunha Lins, Rosana Zacarias Domingues   +4 more
openaire   +2 more sources

Improvement in Slag Resistance of No-Cement Refractory Castables by Matrix Design

Ceramics, 2020
The corrosion resistance of spinel containing cement bonded castables has been extensively investigated in the past. However, corrosion of no-cement refractory castables (NCC) has not been widely studied since the use of NCC has been relatively limited ...
Hong Peng, Jun Liu, Qinghu Wang, Yawei Li   +3 more
doaj   +1 more source

Nb2C‐Reinforced Hydrogel Microneedle as Dual ROS‐Scavenging Platform to Promote Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
An advanced microneedle patch integrating niobium carbide nanosheets and curcumin is engineered for diabetic wound healing. The system enables dual ROS scavenging and NIR‐enhanced antimicrobial activity, effectively rebalancing the oxidative microenvironment, promoting macrophage repolarization and angiogenesis, and accelerating full‐thickness wound ...
Zhi Zheng, Heyan Huang, Xiangru Chen, Jie Fu, Zhiwei Sun, Mengjuan Tao, Jianwei Mao, Fei Zhang, Zhou Wan, Yuan Li, Dingan Wu, Chuchao Zhou, Yanqing Yang   +12 more
wiley   +1 more source

Técnicas para avaliação da consolidação de suspensões cerâmicas com o uso de diferentes ligantes Techniques for setting evaluation of ceramic suspensions with different binders

Cerâmica, 2007
O desenvolvimento de concretos refratários avançados exige uma otimização simultânea das propriedades reológicas (fluidez e trabalhabilidade) e do tempo de desmoldagem desses materiais.
I. R. Oliveira, R. D. dos Anjos, V. C. Pandolfelli   +2 more
doaj   +1 more source

A novel procedure for the evaluation of new refractories for aluminium furnaces [PDF]

, 2015
Refractory materials for aluminium industry are designed to be resistant to different degrees of thermal, mechanical and chemical wear. The refractory wall thickness reduction during service life increases the heat losses through walls, decreasing the ...
Anglada, Eva, de Landía, Leonor, Mendizabal, Gorka, Rodriguez, Patxi, Toledo, Nagore, Vicario, Iban   +5 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Fiber reinforced refractory castables for SPF toolings [PDF]

Materialwissenschaft und Werkstofftechnik, 2008
AbstractFiber reinforced refractory castable (FRRC) is an emerging material solution to manufacture SPF tools for forming titanium alloy sheets. Indeed, FRRC are able to conserve good mechanical properties up to 900 °C. Fiber reinforcement allows to improve mechanical properties and to avoid a catastrophic failure.
G. Bernhart, F. Nazaret, T. Cutard
openaire   +1 more source

انتاج خرسانة حرارية عازلة من مواد محلية

Journal of Engineering and Sustainable Development, 2019
The research examines the possibility of producing insulating castable Refractory from locally available raw materials consisting of thermal aggregates represented by alumina bricks, which produce in large quantities in factories as industrial residues,
أحمد جبار محسن, هند حسين حمد, زياد ممتاز محمد ازهر   +2 more
doaj  

Effect of silica fume additions on the hydration behaviour of calcium aluminates [PDF]

, 1997
In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina.
Fumo, Daniel A., Segadães, Ana M.
core   +1 more source

Microenvironment Modulation‐Based Nanomaterial‐Loaded Hydrogel Dressings for Diabetic Foot Ulcers: Research Progress and Future Perspectives

Advanced Materials Interfaces, EarlyView.
xx xx. ABSTRACT Diabetic foot ulcer (DFU) is a chronic complication of diabetes, primarily caused by hyperglycemia, peripheral vascular disease, and neuropathy. Characterized by persistent hyperglycemia, impaired perfusion, inflammation, and infection, DFUs pose significant challenges to healing and are associated with high morbidity and amputation ...
Tang Yuqing, Chen Hong, Fan Weijing, Huang Renyan, You Yang, Liu Guobin   +5 more
wiley   +1 more source