Procedure To Manufacture And Evaluate Matrixes That Operate At Pressures Of Up To 3 GPa

Sergio R. da Silva Soares¹, Leonardo Resende¹, Alexandra de O. França Hayama¹,

Luana Góes Soares², Ruan A. de Brito¹

¹Curso de Engenharia Mecânica, Universidade Federal de Rondonópolis (UFR), Av. dos Estudantes,
5055, 78736-900, Rondonópolis, MT, (BRAZIL)

²Laboratório de Materiais Cerâmicos (LACER), Universidade Federal do Rio Grande do Sul (UFRGS),
Avenida Osvaldo Aranha, 99, sala 709, 90035190, Porto Alegre, RS, (BRAZIL)

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ABSTRACT – DOI: https://dx.doi.org/10.47204/EMSR.5.1.2023.007-011

Mastery of high pressure generation technology at the levels required in this work it’s not trivial. Special matrices, with structural configurations that allow a extreme mechanical stress of the materials with which they are constructed, are used to produce that level of pressure. One of the simplest systems for generating static pressures up to 3 GPa (3000 MPa), is piston-cylinder type. In this type of apparatus, sintered highly densified can be produced from particulate matter placed inside a die and under an axial force, pressed between two pistons. In the presente work, the procedure used to manufacture a matrix (chamber) piston cylinder designed to operate at pressures up to 3 GPa (3000 MPa). Subsequently, from the compaction of chips of a 1050 steel (Æ £ 850 µm) in this matrix, the effect of pressure on the compacted microstructure was evaluated. The results obtained showed that: a) The designed matrix can operate at pressures of up to 3 GPa; b) The microstructure compacted under pressures from 1 GPa (1000 MPa) appeared uniform, highly densified and similar to those obtained by conventional methods that generally require the use of pressure and temperature.