Results 31 to 40 of about 1,504,487 (204)

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

Advanced 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, Hang Luo, Di Zhai, Zhida Xiao, Haoran Xie, Yuan Liu, Fan Wang, Xun Jiang, Dou Zhang   +8 more
doaj   +1 more source

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

Scientific 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, Chao Jiang, Jiale Li, Xiaozhong Huang   +3 more
doaj   +1 more source

Powder Metallurgy: A New Open Section in Metals [PDF]

, 2021
Powder Metallurgy (PM) is a forming technology that uses metallic (sometimes also in conjunction with ceramic) powders to develop parts, most of the time through a thermal process called sintering, which never reaches the melting point of the principal ...
Jose Manuel Torralba, Torralba Castelló, José Manuel   +1 more
core   +1 more source

Tailoring dielectric relaxation time in ultralight graphene aerogels for ultra-broadband microwave absorption and multifunctional applications

Nano Research
Composite aerogels composed of reduced graphene oxide (RGO), single-walled carbon nanotubes (SWNTs), and polyimide (PI) with an oriented porous structure exhibit flexible, high-performance microwave absorption and a tunable porosity.
Zizhao Ding, Chao Jiang, Zixiang Zhao, Yiting Zhu, Shenglong Huang, Yilun Cheng, Qiancheng Zhang, Mingwei Zhang, Dou Zhang   +8 more
doaj   +1 more source

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

Весці 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, Ya. Ya. Piatsiushyk, A. K. Kryvanos   +2 more
doaj   +1 more source

Advances in Powder Metallurgy for High-Entropy Alloys

Journal of Powder Materials
High-entropy alloys (HEAs) represent a revolutionary class of materials characterized by their multi-principal element compositions and exceptional mechanical properties.
S. Dewangan, Cheenepalli Nagarjuna, Han-Sung Lee, K. R. Rao, Mo-Han Man, Reliance Jain, Byungmin Ahn   +6 more
semanticscholar   +1 more source

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

Весці 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, Ya. Ya. Piatsiushyk, A. K. Kryvanos   +2 more
doaj   +1 more source

Fabrication of a Porous TiNi₃ Intermetallic Compound to Enhance Anti-Corrosion Performance in 1 M KOH

Metals
Porous intermetallic compounds have the properties of porous materials as well as a combination of covalent and metallic bonds, and they exhibit high porosity, structural stability, and corrosion resistance.
Zhenli He, Yue Qiu, Yuehui He, Qian Zhao, Zhonghe Wang, Yao Jiang   +5 more
doaj   +1 more source

News Trends in Powder Metallurgy: Microstructures, Properties, Durability

, 2021
Compared with traditional casting or plastic deformation processes, powder metallurgy-based methods are versatile routes for producing in-demand microstructures of various types [...
Eric Hug, Guy Dirras, Dirras, Guy, Hug, Eric   +3 more
core   +1 more source

Microwave-assisted preparation of multi principal element alloys by powder metallurgy approach [PDF]

, 2017
According to literature, the synthetic route to produce High entropy alloys (HEAs) should guarantee short alloying time, efficient cooling and capability to operate in controlled atmosphere.
Veronesi P., Casagrande A., Colombini E., Borromei I., Trombi L.   +4 more
core