The Influence of High Gravity in PbSn Eutectic Alloy

Freitas, Filipe Estevão de; Toledo, Rafael Cardoso; Poli, A.; Chen, An; Bandeira, I. N.

doi:10.4028/www.scientific.net/msf.869.631

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…The study of materials solidified in centrifuges improves the understanding how the accelerations, bigger than the Earth's gravity, influence on materials processing. Large centrifuges are expensive and hardly available for crystal growth and solidification experiments [2,[6][7][8][9][10][11]. To overcome this difficulty, a small centrifuge was designed 1 and built at Associated Laboratory of Sensors and Materials of the National Institute of Space Research (LABAS/INPE), which provides an acceleration ranging from 1 to 10 times the Earth gravity [11].…”

Section: Introductionmentioning

confidence: 99%

Development and Construction of a Centrifuge for Materials Processing in High Accelerations

Tenório¹,

Freitas²,

Lomas³

et al. 2018

TMM

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Different accelerations, larger or smaller than Earth's gravity, can influence the materials solidification process. In order to study these effects in metallic alloys and semiconductors, a research centrifuge was developed at the Associated Laboratory of Sensors and Materials of the National Institute of Space Research (LABAS / INPE). The equipment aims to study the materials solidification both under high accelerations and also at the launching conditions of the VSB-30 sounding rocket, which reaches 180 RPM (revolutions per minute) during upward flight. This launcher was used to perform microgravity experiments in previous laboratory work. This paper presents the design, the component fabrication and the centrifuge assembly.

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Section: Introductionmentioning

confidence: 99%

Development and Construction of a Centrifuge for Materials Processing in High Accelerations

Tenório¹,

Freitas²,

Lomas³

et al. 2018

TMM

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Study of the redistribution of solute in eutectic lead-tin alloys solidified under high acceleration

Tenório

Toledo

Bandeira

et al. 2018

RBAV

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EFEITOS DA ALTA ACELERAÇÃO NA SOLIDIFICAÇÃO DA LIGA Pb-Sn EUTÉTICA

Tenório¹

2019

ABM Proceedings

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Resumo Este trabalho tem objetivo de estudar a influência da macrogravidade (g > 1) na solidificação de materiais, para isso, foi utilizada a centrifuga desenvolvida no Laboratório Associado de Sensores e Materiais do Instituto Nacional de Pesquisas Espaciais (LABAS/INPE). O material escolhido foi a liga de chumbo-estanhoeutética (Pb 38,1 Sn 62,9 % p.) devido principalmente a seu baixo ponto de fusão.Ascaracterizaçõesrealizadas foram de densimetria e de microscopia eletrônica de varredura (MEV).Os resultados obtidos indicam que a macrogravidadeafeta a diretamente redistribuição do soluto, e consequentemente, na microestrutura do material. Palavras-chave:Solidificação; Ligas eutéticas; Alta gravidade.

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The Influence of High Gravity in PbSn Eutectic Alloy

Cited by 3 publications

References 7 publications

Development and Construction of a Centrifuge for Materials Processing in High Accelerations

Development and Construction of a Centrifuge for Materials Processing in High Accelerations

Study of the redistribution of solute in eutectic lead-tin alloys solidified under high acceleration

EFEITOS DA ALTA ACELERAÇÃO NA SOLIDIFICAÇÃO DA LIGA Pb-Sn EUTÉTICA

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