Results 11 to 20 of about 35,428 (307)

High-entropy alloy CoCrFeMnNi produced by powder metallurgy

open access: yes, 2022
S.184-197Lately high-entropy alloys (HEAs) have been the topic of extensive research, as these materials are promising candidates for many challenging applications, as for example tools, moulds and functional coatings. In contrast to conventional alloys,
Eißmann, N.   +3 more
core   +2 more sources

Synthesis of Multi-Principal Element Alloys by a Conventional Powder Metallurgy Process

open access: yes, 2023
The development of tailored microstructures of Multi-principal element alloys (MPEAs) is currently a hot topic in physical metallurgy. The most targeted systems are equimolar alloys composed of 3d transition metals including the so-called Cantor alloy (i.
Veronesi P.   +9 more
core   +1 more source

A dual-transmission-bands rasorber with improved absorption and oblique incidence performance

open access: yesScientific Reports, 2022
In this paper, a high-absorption and dual-transmission-bands rasorber (HADTR) was proposed. Different from the reported designs, a foam layer and a FR4 layer are added as top layers in HADTR to improve its absorption and oblique incidence performance ...
Zheyipei Ma   +3 more
doaj   +1 more source

Preparation processes of high density iron-based powder metallurgy parts [PDF]

open access: yes, 2022
The preparation technologies of high density iron based powder metallurgy products used in NBTM were introduced in this paper, including warm compaction, warm die compaction, double-pressing and double-sintering, and the advantages and disadvantages of ...
LIU Xue-quan   +7 more
core   +1 more source

Research progress of molybdenum alloys prepared by powder metallurgy [PDF]

open access: yes, 2023
Molybdenum and molybdenum alloys prepared by the powder metallurgy method are widely used in metallurgy, machinery, chemical industry, aviation and nuclear industry, attributing to the outstanding mechanical properties at elevated temperatures.
ZHOU Wenyuan   +8 more
core   +1 more source

Ultrahigh energy density in dielectric nanocomposites by modulating nanofiller orientation and polymer crystallization behavior

open access: yesAdvanced Powder Materials
High-energy density dielectrics for electrostatic capacitors are in urgent demand for advanced electronics and electrical power systems. Poly(vinylidene fluoride) (PVDF) based nanocomposites have attracted remarkable attention by intrinsic high ...
Ru Guo   +8 more
doaj   +1 more source

MODIFICATION OF THE ENERGY-SATURATED HETEROGENEOUS COMPOSITE MATERIAL BY CYCLIC NITRAMINES

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
Several methods have been described for increasing the main characteristics (density, heat of combustion, combustion temperature, gas formation index) and operating properties (combustion speed and temperature, total and specific impulse, properties of ...
A. Ph. Ilyushchanka   +2 more
doaj   +1 more source

Introduction of nanoscale additives in the process of modification of energy-saturated heterogeneous composite material

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2019
The article describes a possible way of introducing nanoscale powders into energy-saturated heterogeneous composite materials (ECM). By the example of polydispersed nanoscale carbon, the main well-known methods for introducing nanoscale components into ...
A. Ph. Ilyushchanka   +2 more
doaj   +1 more source

Effects of process parameters on microstructure and cracking susceptibility of a single crystal superalloy fabricated by directed energy deposition

open access: yesMaterials & Design, 2021
As an advanced material forming method, additive manufacturing (AM) has been rapidly developed in many industry fields. Due to the non-weldability of nickel-based single crystal (SX) superalloys and complex solidification and stress conditions of AM ...
Zhipeng Zhou   +9 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

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