Results 101 to 110 of about 174,219 (285)
Advanced Science, EarlyView.This study presents a femtosecond laser‐based ultrashort pulse dicing system that uses a non‐diffracting Bessel beam to shape the femtosecond laser. The use of femtosecond Bessel beam shaping and high‐speed scanning enables rapid material removal that outpaces thermal diffusion, thereby suppressing melting, minimizing the HAZ, and reducing sidewall ...
Shunshuo Cai +12 more
wiley +1 more source
Advanced Science, EarlyView.This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen +7 more
wiley +1 more source
Using of the Modern Semiconductor Devices Based on the SiC
Advances in Electrical and Electronic Engineering, 2008 This paper deals with possibility of application of the semiconductor devices based on the SiC (Silicon Carbide) inthe power electronics. Basic synopsis of SiC based materials problems are presented, appreciation of their properties incomparison with ...
Pavel Drabek
doaj
Advanced Science, EarlyView.A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang +9 more
wiley +1 more source
Backscatter Sensors Communication for 6G Low-Powered NOMA-Enabled IoT Networks Under Imperfect SIC [PDF]
, 2022 Manzoor Ahmed +5 more
openalex +1 more source
Advanced Science, EarlyView.A new multi‐step β‐SiC deposition strategy for anti‐oxidation Cf/C composites successfully achieves dual‐performance breakthrough of anti‐oxidation property (≈700 h at 1500 °C)and mechanical property (bending strength of 215 MPa and adhesion strength of 9.4 MPa).
Dou Hu +7 more
wiley +1 more source
An Elastocaloric Polymer with Ultra‐High Solid‐State Cooling via Defect Engineering
Advanced Science, EarlyView.This work reports a defect‐engineering strategy that enables a record‐high adiabatic temperature change of up to 8.14 ± 1.76 °C in elastomers at an elevated temperature above 65 °C. Combined experimental and theoretical efforts reveal that increasing dangling‐chain defects nonmonotonically impacts the elastocaloric cooling performance of polymers due ...
Zhaohan Yu +11 more
wiley +1 more source
Space: Science & TechnologyTraditional threshold-voltage (Vth) measurements are usually performed either offline or during in situ state monitoring, are typically conducted offline or in situ state monitoring, limiting their ability to assess Vth accurately during the aging ...
Xinlan Hou +7 more
doaj +1 more source