Results 91 to 100 of about 141,520 (208)

CO2 multicyclic capture of pretreated/doped CaO in the Ca-looping process. Theory and experiments [PDF]

open access: yes, 2013
We study in this paper the conversion of CaO-based CO2 sorbents when subjected to repeated carbonation/calcination cycles with a focus on thermally pretreated/doped sorbents.
Perejón Pazo, Antonio   +3 more
core   +1 more source

Microstructure and Ferroelectric Properties of Low Temperature Sintering PMN-PNN-PZT Ceramics with Sintering Temperature

open access: yesJournal of the Korean Institute of Electrical and Electronic Material Engineers, 2006
In this study, in order to develop the low temperature sintering multilayer piezoelectric actuator, PMN-PNN-PZT system ceramics were manufactured and their microstructure, ferroelectric and piezoelectric properties were investigated. By increasing sintering temperature, remanent polarization was increased due to the increase of sinterability and grain ...
Ju-Hyun Yoo, Hyun-Seok Lee, Sang-Ho Lee
openaire   +2 more sources

Design of cyclic prefix characteristic-based OFDM system for WiMAX technology [PDF]

open access: yes, 2019
Worldwide interoperability for microwave access (WiMAX) offers the wireless connectivity using orthogonal frequency division multiplexing (OFDM) modulation is a proficient wireless technology that capacities high-speed data transmission facilities.
Abdullah, Mohammad Faiz Liew   +3 more
core  

Low-Temperature and Ultrafast Dual-Powder Spark Plasma Sintering of (W,Ti)C Cermets with the Addition of Metal Core-Shell Nanopowder

open access: green, 2022
Jianhao Peng   +6 more
openalex   +1 more source

Preparation and properties of Mo2C-TiN0.3 composite materials at high temperature and high pressure

open access: yesJin'gangshi yu moliao moju gongcheng
Objectives: This study aims to prepare sintered bodies of Mo2C and TiN0.3 and explore their phase compositions, microstructures, and mechanical properties. Using a combined approach of mechanical alloying and high-temperature high-pressure sintering, the
Qin ZOU   +4 more
doaj   +1 more source

Mekanisme penentuan hak anak dalam perwarisan harta pusaka Islam di Wilayah Persekutuan Kuala Lumpur [PDF]

open access: yes, 2019
Anak merupakan salah satu waris utama dalam perwarisan harta Islam. Penentuan hak anak dalam pewarisan memerlukan mekanisme khusus iaitu melalui keabsahan nasab dan keabsahan jantina yang seringkali menjadi pertikaian dalam perwarisan harta pusaka ...
Kassim, Muhammad Khairul Nizzam
core  

Ultrasonic study of sintered SiC at low temperatures

open access: yesMaterials Research Bulletin, 1985
We investigated the temperature dependence, at low temperatures (< 1 K), of sound velocity in sintered silicon carbide samples, containing three different sintering additives, boron or beryllium oxide or aluminum nitride. The results are interpreted in terms of Two Level Tunneling System (TLS).
Hikata, A.   +4 more
openaire   +1 more source

Effect of sintering temperature on the microstructure and properties of Al–7.5Cu–1Si alloy

open access: yesMaterials Research Express
With increasing requirements for environmental protection and energy conservation, Al–Cu powder alloys play an important role in machine weight reduction.
Chaoyang Zhang   +6 more
doaj   +1 more source

Low-temperature sintering and dielectric properties of calcium magnesium titanate microwave dielectric ceramics

open access: yesCailiao gongcheng
In this study, 0.95MgTiO3-0.05CaTiO3 powders are synthesized via a high-temperature solid-phase reaction, utilizing TiO2,CaCO3,and Mg(OH)2 as the primary reactants. Guided by the phase diagram, sintering aids comprising Li2B4O7-Al2O3, which possess a low
LIN Wei   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy