Results 31 to 40 of about 41,073 (310)

Non-invasive Analyses of Ancient Ceramics Colorants

Croatica Chemica Acta, 2015
Present research exploits the benefits of the non-invasive and non-destructive spectroscopic methods in order to characterize the pigments which constitute the colorants found on ancient ceramic pieces.
Igor Lukačević, Dragana Rajković
doaj   +1 more source

Application of bauxite waste from amazon region in the heavy clay industry [PDF]

Materials Research, 2013
In this work, a method was developed for the application of red mud, an alkaline leaching waste, from a bauxite processing plant located in northern Brazil (Amazon region) as starting material for heavy clay products.
Edemarino Araujo Hildebrando, José Antônio da Silva Souza, Rômulo Simões Angélica, Roberto de Freitas Neves   +3 more
doaj   +1 more source

Desempenho de concretos com agregados reciclados de cerâmica vermelha Performance of red ceramic recycled aggregate concrete

Cerâmica, 2009
Os resíduos de construção e demolição (RCD) constituem uma importante parcela dos resíduos sólidos produzidos nas cidades brasileiras, correspondendo em torno de 50% dos resíduos sólidos urbanos.
A. E. B. Cabral, V. Schalch, D. C. C. Dal Molin, J. L. D. Ribeiro, Rasiah Sri Ravindrarajah   +4 more
doaj   +1 more source

Reaproveitamento de resíduo de rocha ornamental proveniente do Noroeste Fluminense em cerâmica vermelha Utilization of ornamental rock waste from Northwest Fluminense in red ceramic

Cerâmica, 2005
A indústria de rochas ornamentais da região Noroeste Fluminense gera grandes quantidades de resíduo fino resultante do processo de extração e corte de rochas. Este resíduo quando descartado provoca impacto ambiental negativo no meio ambiente. No presente
J. M. S. Moreira, J. P. V. T. Manhães, J. N. F. Holanda   +2 more
doaj   +1 more source

Evaluation and application of sintered red mud and its incorporated clay ceramics as materials for building construction

Journal of Materials Research and Technology, 2020
In the aluminum industry, the initial operation comprises the production of its oxide, Al2O3 (alumina) from ores, mainly the bauxite. The Bayer process is, in practice, the only used to produce alumina generating a huge amount of hazardous waste known as
Michelle Pereira Babisk, Lucas Fonseca Amaral, Larissa da Silva Ribeiro, Carlos Maurício Fontes Vieira, Ulisses Soares do Prado, Monica Castoldi Borlini Gadioli, Michelle Souza Oliveira, Fernanda Santos da Luz, Sergio Neves Monteiro, Fabio da Costa Garcia Filho   +9 more
doaj   +1 more source

Efeito da utilização de areia no processamento e nas propriedades de cerâmica vermelha Effect of the use of sand in the processing and properties of red ceramics

Cerâmica, 2010
Este trabalho teve por objetivo reformular uma típica massa de telhas produzida no município de Campos dos Goytacazes, RJ, variando a quantidade de areia.
L. F. T. Queiroz, S. N. Monteiro, C. M. F. Vieira   +2 more
doaj   +1 more source

A far-red-emitting (Gd,Y)(3)(Ga,Al)(5)O-12:Mn2+ ceramic phosphor with enhanced thermal stability for plant cultivation

, 2020
As for plants, far-red (FR) light with wavelength from 700 nm to 740 nm is critical for processes of photosynthesis and photomorphogenesis. Light-controlled development depends on light to control cell differentiation, structural and functional changes ...
Qiu, Xuting, Liu, Zehua, Chen, Xiaopu, Xu, Jingtao, Luo, Zhaohua, Jiang, Haochuan, Jiang, Jun, Ding, Hui   +7 more
core   +1 more source

Incorporation of mold flux waste in red ceramic

Journal of Materials Research and Technology, 2019
This work has as its objective to evaluate the effect of mold flux waste incorporation in a red ceramic body. The mold flux waste came from an industry of additives for continuous casting of steel, in the municipal area of Guaratinguetá, State of São Paulo, Brazil.
Thaís Queiroz Gomes Vigneron, Carlos Maurício Fontes Vieira, Geovana Carla Girondi Delaqua, Fernando Vernilli Júnior, Ângelo Cristante Neto   +4 more
openaire   +2 more sources

Gestão da inovação e capacidade competitiva: uma análise não paramétrica no setor cerâmico de Campos dos Goytacazes, RJ Innovation management and competitive capacity: a non-parametric analysis in the red ceramic sector of Campos dos Goytacazes, RJ, Brazil

Cerâmica, 2012
No atual cenário de competição acirrada, a capacidade de inovar se faz fator chave para o desempenho empresarial sendo uma fonte de obtenção de vantagens competitivas.
A. F. Rocha, M. A. M. Palma
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source