Results 51 to 60 of about 1,558 (261)

Influência de aditivos dispersantes nas propriedades de concretos refratários de Al2O3 e Al2O3-MgO Influence of dispersants in Al2O3 and Al2O3-MgO refractory castables

Cerâmica, 2004
O estado de dispersão das partículas constituintes da matriz de concretos apresenta uma influência direta no comportamento reológico desses materiais, determinando as técnicas que podem ser usadas para a sua aplicação.
I. R. de Oliveira, A. R. Studart, M. Innocentini, L. A. Nascimento, V. C. Pandolfelli   +4 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

Adição de microssílica e a secagem de concretos refratários Microsilica addition and the drying of refractory castables

Cerâmica, 2004
A microssílica é o material superfino (
R. D. dos Anjos, M. R. Ismael, F. T. Ramal Jr, V. C. Pandolfelli   +3 more
doaj   +1 more source

Refractories : 1998 [PDF]

, 2000
Current industrial report.

core  

Sizing of Refractory Castable Gas-Burner Using Thermomechanical Simulations [PDF]

Advances in Science and Technology, 2010
Damage is a crucial characteristic of refractory castables and has to be considered to simulate correctly the behaviour of refractory structures. But, damage modelling by finite element simulations remains difficult. Indeed, the use of a continuum damage model with softening leads to strain localization phenomena.
Nazaret, Fabien, Cutard, Thierry, Barrau, Olivier   +2 more
openaire   +2 more sources

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

Módulo elástico como ferramenta para avaliação da hidratação da magnésia e dos processamento de concretos refratários Elastic modulus as a tool for magnesia hydration and refractory castables processing evaluation

Cerâmica, 2012
Considerando-se as dificuldades para a utilização de MgO em concretos refratários, técnicas anti-hidratação têm sido propostas com o objetivo de minimizar os efeitos deletérios causados pela reação da magnésia com a água. Em paralelo, surge a necessidade
T. M. Souza, M. A. L. Braulio, P. Bonadia, V. C. Pandolfelli   +3 more
doaj   +1 more source

Refractories : 2001 [PDF]

, 2002
Current industrial report.

core  

Oxygen Evolution Reaction Catalysts for Acidic‐Media CO2 Electrolyzers

Advanced Materials, EarlyView.
Acidic‐media CO2 electroreduction (CO2R) could decarbonize chemical production, despite relying on rare‐earth elements for anodic oxygen evolution reaction (OER). Transferring the learnings from mature sister technologies (water electrolysis) could accelerate technological development.
Mingcheng Huang, Adnan Ozden
wiley   +1 more source

Refractories : 2003 [PDF]

, 2004
Current industrial report.

core