Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Maurício Ferrapontoff Lemos"'
Autor:
Rodrigo Leonard Barboza Rodrigues, Maurício Ferrapontoff Lemos, Tanos Celmar Costa França, Letivan Gonçalvez Mendonça Filho
Publikováno v:
Journal of Aerospace Technology and Management, Vol 11, Iss 1 (2020)
Traditional stabilizers for nitrocellulose-based (NC-based) propellants are known to have carcinogenic, mutagenic and toxicity to reproduction potentials. Therefore, the replacement of these stabilizers in the propellants formulations is necessary, b
Externí odkaz:
https://doaj.org/article/bb4a5e60bbf04dacafe56b041bdb791a
Autor:
Ana Carolina Marotti, Maurício Ferrapontoff Lemos, Jonas Farias Santos, Letivan Gonçalves de Mendonça Filho, Jakler Nichele
Publikováno v:
Journal of Aerospace Technology and Management, Vol 11, Iss 1 (2020)
The present work investigated the effects of varying two parameters of a pilot-scale composite propellant plant: the mechanical vibration and the vacuum level. The application of mechanical vibration to the casted mold after the end of mixing has imp
Externí odkaz:
https://doaj.org/article/a2b9d9fa1bbe4211857b762d41046091
Autor:
Fernando Cunha Peixoto, Maurício Ferrapontoff Lemos, Pedro Augusto Gomes Buitrago, Letivan Gonçalvez Mendonça Filho, Rodrigo L. B. Rodrigues, Tanos C. C. França, Nami Lavigne Nakano
Publikováno v:
Journal of Energetic Materials. 40:218-241
This research evaluates the feasibility of replacing diphenylamine (DPA) with the natural product curcumin as a stabilizer in samples of nitrocellulose-based (NC-based) propellants. The stability a...
Autor:
MAURÍCIO FERRAPONTOFF LEMOS, ANA PAULA DA SILVA, PRISCILA SIMÕES TEIXEIRA AMARAL, EDSON DA SILVA SOUZA, LAURÍLIO JOSÉ DA SILVA JÚNIOR, RAFAEL COUTINHO PINTO, WILLIAM KLINSMANN DE OLIVEIRA FERREIRA, DANIEL JOSÉ NAHID MANSUR CHALHUB, GIL ROBERTO V. PINHEIRO, LEIB DE ANDRADE NEUBARTH, RACHEL MANHÃES DE LUCENA, NORBERTO MANGIAVACCHI
Publikováno v:
Proceedings of the 32nd International Symposium on Ballistics.
Extended range munitions (ERM) are systems whose performance is subject to aerodynamic, internal ballistics and trajectory effects. There are models in the literature for each of these aspects; thus, a holistic approach that unifies them would—theo
Autor:
Jonas Farias Santos, Maurício Ferrapontoff Lemos, Ana Carolina Marotti, Jakler Nichele, Letivan G. Mendonça Filho
Publikováno v:
Journal of Aerospace Technology and Management. :11-14
The present work investigated the effects of varying two parameters of a pilot-scale composite propellant plant: the mechanical vibration and the vacuum level. The application of mechanical vibration to the casted mold after the end of mixing has imp
Autor:
Letivan Gonçalvez Mendonça Filho, Tanos C. C. França, Maurício Ferrapontoff Lemos, Rodrigo L. B. Rodrigues
Publikováno v:
Journal of Aerospace Technology and Management. :3-6
Traditional stabilizers for nitrocellulose-based (NC-based) propellants are known to have carcinogenic, mutagenic and toxicity to reproduction potentials. Therefore, the replacement of these stabilizers in the propellants formulations is necessary, b
Autor:
Maurício Ferrapontoff Lemos, LAURILIO SILVA JUNIOR, GIL ROBERTO VIEIRA. PINHEIRO, Norberto Mangiavacchi, Daniel Chalhub, Leib Neubarth, Rachel Manhães de Lucena, Priscila Simões Teixeira Amaral, ANA PAULA DA SILVA, rafael pinto, william Ferreira
Publikováno v:
Procceedings of the 19th Brazilian Congress of Thermal Sciences and Engineering.
Autor:
GIL ROBERTO VIEIRA. PINHEIRO, Mylena Candido, Daniel Chalhub, José da Rocha Miranda Pontes, Leib Neubarth, Norberto Mangiavacchi, Rachel Manhães de Lucena, Maurício Ferrapontoff Lemos, ANA PAULA DA SILVA, Priscila Simões Teixeira Amaral, LAURILIO SILVA JUNIOR
Publikováno v:
Procceedings of the 19th Brazilian Congress of Thermal Sciences and Engineering.
Autor:
Fernando Cunha Peixoto, Tanos C. C. França, Letivan G. Mendonça Filho, Rogério Rosato, Maurício Ferrapontoff Lemos, Rodrigo L. B. Rodrigues, Ana Paula da Silva
In this work we investigated the possibility of substituting diphenylamine (DPA) by the natural product guaiacol, as a stabilizer for nitrocellulose (NC)-based propellants. Stability evaluation, using heat-flux calorimetry (HFC), revealed lower heat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1731b3bac00066bcf8a90e38229b2e8
https://doi.org/10.21203/rs.3.rs-686720/v1
https://doi.org/10.21203/rs.3.rs-686720/v1
Autor:
Matheus Pereira Ribeiro, Sergio Neves Monteiro, Ana Paula da Silva, Thuane Teixeira da Silva, Lucio Fabio Cassiano Nascimento, Pedro Henrique Poubel Mendonça da Silveira, Maurício Ferrapontoff Lemos
Publikováno v:
Polymers
Volume 13
Issue 12
Polymers, Vol 13, Iss 2016, p 2016 (2021)
Volume 13
Issue 12
Polymers, Vol 13, Iss 2016, p 2016 (2021)
Kenaf (Hibiscus cannabinus L.) is one of the most investigated and industrially applied natural fibers for polymer composite reinforcement. However, relatively limited information is available regarding its epoxy composites. In this work, both therma