The influence of the milling environment on the sintered structure of a W-Cu composite
Creators
- 1. Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil). Departamento de Fisica Teorica e Experimental
- 2. Centro Universitario FEI, Sao Bernardo do Campo, SP (Brazil). Departamento de Engenharia de Materiais
- 3. Universidade Federal do Norte Fluminense (UENF), Campos dos Goytacazes, RJ (Brazil). Laboratorio de Materiais Avancados
- 4. Universidade Federal da Paraiba (UFPB), Joao Pessoa, PB (Brazil). Departamento de Tecnologia Mecanica
Description
This work reports an investigation about the influence of the environment of milling on the characteristics of the powders and on the structure and density of sintered samples made of these powders. Mixtures of composition W-30wt%Cu were milled for 51 hours in a high energy planetary mill in dry and wet (cyclohexane) conditions. The milled powders have composite particles. The powders were pressed and sintered at 1050 deg, 1150 deg and 1200 deg C under flowing hydrogen. The isothermal times were 0 minutes for the first two temperatures and 60 minutes for the latter. The samples reached around 95% of relative density. The powders were characterized by means of XRD and SEM. The sintered samples were characterized by means of SEM, optical microscopy and density measurement. (author)
Files
47116493.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 7 p.
- Report number
- INIS-BR--16591
Conference
- Title
- 7. International latin-american conference on powder technology
- Acronym
- PTECH 2009
- Dates
- 8-10 Nov 2009
- Place
- Atibaia, SP (Brazil)
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 47116493
- Subject category
- S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COMPOSITE MATERIALS; COPPER; DENSITY; HYDROGEN; MILLING; OPTICAL MICROSCOPY; POWDERS; SCANNING ELECTRON MICROSCOPY; SINTERING; TUNGSTEN; X-RAY DIFFRACTION
- Descriptors DEC
- COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; ELEMENTS; FABRICATION; MACHINING; MATERIALS; METALS; MICROSCOPY; NONMETALS; PHYSICAL PROPERTIES; REFRACTORY METALS; SCATTERING; TRANSITION ELEMENTS