Microstructure Features of Metal-Matrix Composites Based on Thermoelectric Bismuth Telluride Matrix and Ferromagnetic Filler
نویسندگان
چکیده
The formative predictables of the microstructure metal-matrix composites, obtained using spark plasma sintering and consisting polycrystalline thermoelectric bismuth telluride Bi2Te3 (composite matrix) a ferromagnetic filler (Ni or Fe), were examined. It was determined that, in course sintering, inclusions form locally gradient nucleus–shell type (Ni@NiTe2 Fe@FeTe2) are formed randomly distributed textured matrix. basic parameters composites (inclusion size extent texturing strongly depend on content.
منابع مشابه
Pressure-induced insulator-to-metal transitions for enhancing thermoelectric power factor in bismuth telluride-based alloys.
First-principles calculations revealing insulator-to-metal transitions in Bi2Te3 and Bi2Te2Se, at 9 GPa and 12.5 GPa, respectively, match with prior experiments. Our electronic band structure calculations and accompanying Boltzmann transport calculations of thermoelectric properties for Bi2-xSbxTe2-ySey alloys explain and predict large power factor changes induced by pressure. Complex band dege...
متن کاملBasics of Metal Matrix Composites
Metal composite materials have found application in many areas of daily life for quite some time. Often it is not realized that the application makes use of composite materials. These materials are produced in situ from the conventional production and processing of metals. Here, the Dalmatian sword with its meander structure, which results from welding two types of steel by repeated forging, ca...
متن کاملThermoelectric and structural characterizations of individual electrodeposited bismuth telluride nanowires
The thermoelectric properties and crystal structure of individual electrodeposited bismuth telluride nanowires NWs were characterized using a microfabricated measurement device and transmission electron microscopy. Annealing in hydrogen was used to obtain electrical contact between the NW and the supporting Pt electrodes. By fitting the measured Seebeck coefficient with a two-band model, the NW...
متن کاملExperimental and Finite Element Simulation of Nano-indentation on Metal Matrix Composites: Hardness Prediction
The scientific importance of nanocomposites are being increased due to their improvedproperties. This paper is divided into two parts. First, Al-Al2O3 nanocomposite wasproduced by using ball milling technique followed by cold compaction and sintering.Microstructure and morphology studies were done through SEM, TEM, and EDX anal-ysis on the produced powder. The mechanical properties of the produ...
متن کاملBi-continuous metal matrix composites
Bi-continuous alumina/aluminium composites were made by infiltrating an alumina preform which had the structure of a reticulated ceramic foam. The low density preforms were prepared from a polyurethane suspension of alumina powder which was pyrolysed and sintered after foaming. Higher density preforms consisted of ceramic foams with open cells. All these preforms were infiltrated with 6061 alum...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Glass and Ceramics
سال: 2022
ISSN: ['1573-8515', '0361-7610']
DOI: https://doi.org/10.1007/s10717-022-00428-x