Results 21 to 30 of about 151,392 (262)

Negative thermal expansion materials † [PDF]

open access: yesJournal of the Chemical Society, Dalton Transactions, 1999
The ZrW2O8 family of materials has been shown to exhibit the unusual property of negative thermal expansion over a wide temperature range. α-ZrW2O8 itself shows negative thermal expansion from 2 K to 1443 K with a coefficient of thermal expansion α1 of -9.1×10-6 K-1 between 2 and 300 K. This behaviour can be related to the unusual structure of these
openaire   +1 more source

Enhanced thermal and mechanical properties of Sr0.2Ba0.8TiO3/Cu composites by introducing Cu2O interface coating

open access: yesMaterials & Design, 2019
Ferroelectric ceramic with negative thermal expansion during the phase transformation from T-phase to C-phase can be used as reinforcement to obtain low thermal expansion metal matrix composites.
Yuxuan Wang   +7 more
doaj   +1 more source

Effects of chirality and stacking on the thermal expansion effects of graphene

open access: yesMaterials Research Express, 2020
Graphene has huge application potential in the field of micro-nano devices, and due to the micro/nano-level application size, the thermal expansion coefficient of graphene has a certain impact on device performance.
Ning Yang, Cheng Li, Yong Tang
doaj   +1 more source

Effects of Y content on microstructures and thermal expansion behavior of Mg-Al-Y alloys

open access: yesMaterials Research Express, 2021
Low thermal expansion alloys play an important role in the applications of high-precision instruments because of their excellent dimensional stability under thermal shock. Hence, the effect of Y content on coefficient of thermal expansion (CTE) of Mg-1Al-
Hongbin Ma, Zhuohua Li, Jinhui Wang
doaj   +1 more source

Nova metodologia para aferição da temperatura final de hastes metálicas em um experimento de dilatação térmica linear

open access: yesRevista Brasileira de Ensino de Física
Para realizar o estudo da expansão térmica em diversos materiais é necessário conhecer o seu coeficiente de dilatação linear, mas em alguns casos é difícil medir a temperatura final do corpo em estudo.
Bruno Gonçalves   +4 more
doaj   +1 more source

Linear thermal expansion behavior of compacted bentonite buffer materials

open access: yesCase Studies in Thermal Engineering, 2022
In a geological repository system, buffer is indispensable to ensure the safe disposal of high-level radioactive waste (HLW). Because heat generated from spent nuclear fuel in a canister is released to the surrounding buffers, thermal properties of such ...
Seok Yoon, Gi-Jun Lee, Gyu-Hyun Go
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment

open access: yesEcological Indicators, 2021
Urban expansion is an important factor affecting the urban thermal environment. Moreover, understanding how urban expansion affects the thermal environment, both inside and outside the region, can be effectively applied to urban planning and management ...
Zhiwei Yang, Yingbiao Chen, Zhifeng Wu
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Comparison of properties and thermal modification of thermal expansion silicone rubber

open access: yesCailiao gongcheng, 2023
In order to obtain thermal expansion silicone rubber for composite soft molding with excellent performance and wide adaptability, the flow, heat resistance, thermal expansion and elastic properties of three kinds of thermal expansion silicone rubber were
MA Tengfei   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy