The influence of gamma radiation on the ESC behaviour of a toughened PMMA through stress relaxation
Creators
- 1. Centro Federal de Educacao Tecnologica (CEFET/MG), Belo Horizonte, MG (Brazil)
- 2. Universidade Federal de Pernambuco (DEN/UFPE), Recife (Brazil). Dept. de Energia Nuclear
- 3. Universidade Federal de Campina Grande (DEMa/UFCG), PB (Brazil). Dept. de Engenharia de Materiais
Description
On this work we studied the ESC degradation behaviour of a toughened PMMA irradiated with different gamma radiation doses. Tensile samples were obtained by injection moulding, and then irradiated using a 60Co source. The samples irradiated on several doses were submitted to relaxation tests under air, ethanol and ethylene glycol. The results showed that the ESC action was intensified with the rising radiation doses when the relaxation tests were done under ethanol. On the tests under ethylene glycol the ESC effect was observed only to the irradiated polymer through the higher dose and under the higher relaxation load. The fracture surface analysis of tested relaxation samples, under ethanol, showed a dendritic pattern formed on fracture surfaces. (author)
Files
41118299.pdf
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Additional details
Additional titles
- Original title (Portuguese)
- Influencia da radiacao gama no comportamento de ESC do PMMA tenacificado avaliada por relaxacao de tensao
Publishing Information
- Imprint Pagination
- [10 p.]
- Report number
- INIS-BR--7773
Conference
- Title
- 10. Brazilian congress on polymers
- Original Conference Title
- 10. Congresso brasileiro de polimeros
- Dates
- 13-17 Oct 2009
- Place
- Foz do Iguacu, PR (Brazil)
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 41118299
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COBALT; COBALT 60; CRACKING; CRACKS; DE-EXCITATION; DISSOCIATION; FRACTURE MECHANICS; FRACTURE PROPERTIES; FRACTURES; GAMMA RADIATION; GAMMA SOURCES; IONIZATION; METHACRYLIC ACID ESTERS; PHOTONS; PMMA; RADIATION CHEMISTRY; RADIOLYSIS; RUPTURES; STRESS INTENSITY FACTORS
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BOSONS; CARBOXYLIC ACID ESTERS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CHEMISTRY; COBALT ISOTOPES; DECOMPOSITION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; ENERGY-LEVEL TRANSITIONS; ESTERS; FAILURES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MASSLESS PARTICLES; MECHANICAL PROPERTIES; MECHANICS; METALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYACRYLATES; POLYMERS; POLYVINYLS; PYROLYSIS; RADIATION EFFECTS; RADIATION SOURCES; RADIATIONS; RADIOISOTOPES; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- Code: 339.pdf