Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Wherllyson Patrício Gonçalves"'
Autor:
Romualdo Rodrigues Menezes, Ester Pires de Almeida, Wherllyson Patrício Gonçalves, Gelmires de Araújo Neves, Hélio de Lucena Lira, Lisiane Navarro de Lima Santana, Valmir José da Silva, Raphael Borges da Nóbrega
Publikováno v:
Ceramics International. 45:4692-4699
In this work technical ceramics containing industrial inorganic wastes was carried out. Ceramic formulations prepared with clay, magnesium oxide and residues of kaolin and alumina as raw materials, were formed in a disk-shaped specimens using the uni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7345ed7aab74b5b749e292c0e4a6375
https://doi.org/10.1016/j.ceramint.2018.11.161
https://doi.org/10.1016/j.ceramint.2018.11.161
Autor:
Hélio de Lucena Lira, Romualdo Rodrigues Menezes, Gelmires de Araújo Neves, Valmir José da Silva, Lisiane Navarro de Lima Santana, Wherllyson Patrício Gonçalves
Publikováno v:
Applied Clay Science. 137:259-265
The purpose of this study is to analyze the influence of an aluminum oxide-rich precursor added to clays (smectite/kaolinite) during heat treatment on their mineralogical and microstructural changes, emphasizing the presence of mullite phase. Three c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9c0c960d445f02907703794bfd2b548
https://doi.org/10.1016/j.clay.2016.12.026
https://doi.org/10.1016/j.clay.2016.12.026
Autor:
Hélio de Lucena Lira, Michelle Félix da Silva, Wherllyson Patrício Gonçalves, Lisiane Navarro de Lima Santana, Valmir José da Silva, Romualdo Rodrigues Menezes, Gelmires de Araújo Neves
Publikováno v:
Ceramics International. 42:15471-15478
In the production of alumina by the Bayer process, the calcination step generates a waste containing ~90% aluminum oxide (Al 2 O 3 ). Due to the high content of this oxide, this waste can be used as a source of alumina in porcelain formulations, espe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5ed9147f103bc5973da668d1774f966
https://doi.org/10.1016/j.ceramint.2016.06.199
https://doi.org/10.1016/j.ceramint.2016.06.199
Autor:
Josileido Gomes, Valmir José da Silva, Lisiane Navarro de Lima Santana, Hélio Lucena Lira, Romualdo Rodrigues Menezes, Gelmires de Araújo Neves, Wherllyson Patrício Gonçalves
Publikováno v:
Materials Science Forum. 820:90-95
Front of the large number of applications of the mullite mineral, many researchers seek to synthesize it from the mixture of Al2O3and SiO2powders, or from aluminossilicates, such as smectite. The synthesis of mullite from clays via rapid heating by m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bed11aaf977ff1d3e6f6aaa28a7080b
https://doi.org/10.4028/www.scientific.net/msf.820.90
https://doi.org/10.4028/www.scientific.net/msf.820.90
Autor:
Lisiane Navarro de Lima Santana, Hélio de Lucena Lira, Wherllyson Patrício Gonçalves, Gelmires de Araújo Neves, Josileido Gomes, Romualdo Rodrigues Menezes, Valmir José da Silva
Publikováno v:
Materials Science Forum. 820:84-89
Among the ceramic raw materials, mullite is highlighted for presenting features which are of great interest for industry. However, the process through which this material is obtained requires pure reagents, raising the production costs. Therefore, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6015d68d273b4d53ffaa45a3628f478d
https://doi.org/10.4028/www.scientific.net/msf.820.84
https://doi.org/10.4028/www.scientific.net/msf.820.84
Autor:
Valmir José da Silva, Gelmires de Araújo Neves, Lisiane Navarro de Lima Santana, Wherllyson Patrício Gonçalves, Romualdo Rodrigues Menezes, Josileido Gomes
Publikováno v:
Materials Science Forum. 820:46-50
Clays are very important raw materials in the manufacturing of traditional ceramic products. The present study was intended to study the phase transformations of smectites submitted to thermal treatment in conventional stove, applying slow and fast c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::532c58f5f367dcdec0be3f09eb8e6fdf
https://doi.org/10.4028/www.scientific.net/msf.820.46
https://doi.org/10.4028/www.scientific.net/msf.820.46
Autor:
Gelmires de Araújo Neves, Valmir José da Silva, Wherllyson Patrício Gonçalves, Michelle Félix da Silva, Lisiane Navarro de Lima Santana, Romualdo Rodrigues Menezes
Publikováno v:
Materials Science Forum. :63-68
Heating with microwave power is a process in which the materials take up electromagnetic energy volumetrically and turn it into heat inside a piece. This is the great difference from the conventional method, where the heat flows between objects by me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8f062523ddc44b292d88b561d417586
https://doi.org/10.4028/www.scientific.net/msf.798-799.63
https://doi.org/10.4028/www.scientific.net/msf.798-799.63
Autor:
Wherllyson Patrício Gonçalves, J. M. Cartaxo, Bartolomeu Jorge da Silva, B.S. Lira, Romualdo Rodrigues Menezes, Renato Correia dos Santos, Lisiane Navarro de Lima Santana
Publikováno v:
Materials Science Forum. :721-726
In the ceramic industry, the firing is one of the main stages of the production process. There are two heating rates prevailing at this stage: low heating rate (long residence time) and high heating rate (fast residence time), the low rate is more us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe8260beee6be482f67543e467842a4f
https://doi.org/10.4028/www.scientific.net/msf.727-728.721
https://doi.org/10.4028/www.scientific.net/msf.727-728.721
Autor:
Maria Isabel Brasileiro, Lisiane Navarro de Lima Santana, Romualdo Rodrigues Menezes, Hélio Lucena Lira, Gelmires de Araújo Neves, Wherllyson Patrício Gonçalves
Publikováno v:
Materials Science Forum. :893-898
The kaolin beneficiation industries produce waste that is rich in Al2O3 and SiO2, oxides that when sintered at high temperatures react to form mullite. Due to the rare occurrence of the mullite mineral in nature, the number of studies in order to obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a29c10b32fe4f524dc270706b2612096
https://doi.org/10.4028/www.scientific.net/msf.660-661.893
https://doi.org/10.4028/www.scientific.net/msf.660-661.893
Autor:
Heber Carlos Ferreira, Heber Sivini Ferreira, Romualdo Rodrigues Menezes, Wherllyson Patrício Gonçalves, Gelmires de Araújo Neves, Lisiane Navarro de Lima Santana, Maria Isabel Brasileiro
Publikováno v:
Materials Research, Vol 12, Iss 2, Pp 201-209 (2009)
Materials Research, Volume: 12, Issue: 2, Pages: 201-209, Published: JUN 2009
Materials Research v.12 n.2 2009
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 12, Issue: 2, Pages: 201-209, Published: JUN 2009
Materials Research v.12 n.2 2009
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Mineral extraction and processing industries have been cited as sources of environmental contamination and pollution. However, waste recycling represents an alternative recovery option, which is interesting from an environmental and economic standpoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a073c89bdc1a208c2af93e99966d2a19
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000200015
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000200015