JOA˜O VICTOR DE S. ARAUJO, GIOVANNI B. IAZIGI
The microstructure of a commercially produced AA1100 aluminum matrix composite reinforced with 25 vol.% B4C particles has been characterized to understand its microstructural heterogeneity and interfacial regions. The objective was to identify the relationship between microstructural features and the Ti-rich phase at the interfaces. Using techniques such as X-ray diffraction and transmission electron microscopy, the study revealed irregular and angular B4C particles with local variations in size, morphology, and spacing, leading to a measured area fraction of 26 ± 6%. The aluminum matrix exhibited grain-size heterogeneity, with finer grains in areas devoid of adjacent B4C sites and coarser grains near particle locations. A distinct Ti-rich interfacial region was found between B4C particles and the aluminum matrix, confirmed by X-ray diffraction revealing crystalline TiB2. Further characterization indicated a type IV(a) N2 adsorption-desorption isotherm with an H3 hysteresis loop, showing mesoporosity associated with slit-like pore formations. Crystallographic texture analysis indicated a decrease in maximum orientation distribution from unreinforced to reinforced material. The implications of these findings for the composite's structural performance and neutron absorption capabilities are discussed.
@article{2eb66888-94dd-419e-80c7-89c85b5d764f,
title={2026 Araujo AA1100 B4C Composite Microstructure},
author={JOA˜O VICTOR DE S. ARAUJO and GIOVANNI B. IAZIGI},
year={2026},
language={en}
}TY - JOUR TI - 2026 Araujo AA1100 B4C Composite Microstructure AU - JOA˜O VICTOR DE S. ARAUJO AU - GIOVANNI B. IAZIGI PY - 2026 LA - en ER -
This paper addresses the challenge of assessing the feasibility of wind power plant projects at sites with insufficient or no local historic wind data
Important advances in electrochemical engineering technology over the last three decades have fostered the development of a lternative methods to alle
Increasing volumes of waste printed circuit boards from obsolete electronic equipment posed escalating environmental risks and resource losses due to
The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems f