Results 31 to 40 of about 155,781 (300)

Mechanical Behavior of Reactive Powder Concrete Made From Local Material Subjected to Axial Pressure

Frontiers in Materials, 2021
In order to investigate the influence of various parameters on the compressive strength and fluidity of reactive powder concrete (RPC) made from local materials, 22 groups of RPC cubic specimens and 3 groups of RPC prism specimens were designed, and the ...
Jing Ji, Jing Ji, Wei Kang, Liangqin Jiang, Yunhao Li, Hongguo Ren, Sixue Hao, Lingjie He, Yubo Lin, Chenyu Yu   +9 more
doaj   +1 more source

On the identification of Ti-Ta-Nb-oxides in “wiikites” from Karelia [PDF]

, 2018
Purpose. With respect to the nature of Ti-Ta-Nb-oxides, which are included in the mineral associations that have historically gone by the now outdated name of “wiikites”, there is no unanimity of opinion.
Bogdanov, R, Goldwirt, D, Hosseinpour Khanmiri, M, Janson, S, Platonova, N, Polekhovsky, Yu   +5 more
core   +1 more source

High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) [PDF]

, 2020
The production of porcelain stoneware has experienced a considerable increase. Therefore, it was necessary to undertake an investigation that would allow knowing the mineralogical evolution that porcelain stoneware undergoes during the firing process, as
Jordán Vidal, Manuel Miguel, Meseguer Costa, Sergio, Montero, María Adriana, Pardo Fabregat, Francisco   +3 more
core   +2 more sources

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

The influence of quartz powder addition on the production of paving blocks

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
The research investigates how quartz powder addition affects the physical and mechanical properties of concrete paving blocks made from cement, fine aggregate, water, and coarse aggregate mixtures.
Aryanto, Erwin SUTANDAR, Joewono PRASETIJO   +2 more
doaj   +1 more source

A Cu2+ (S = 1/2) Kagom\'e Antiferromagnet: MgxCu4-x(OH)6Cl2 [PDF]

, 2010
Spin-frustrated systems are one avenue for inducing macroscopic quantum states in materials. However, experimental realization of this goal has been difficult because of the lack of simple materials and, if available, the separation of the unusual ...
Anderson P. W., Braithwaite R. S. W., Collins M. F., Daniel G. Nocera, Danna E. Freedman, de Vries M. A., Greedan J. E., Hamilton W. C., Helton J. S., Lee S. H., McQueen T. M., Moessner R., Peter Müller, Ramirez A. P., Robin Chisnell, Shaoyan Chu, Shores M. P., Tyrel M. McQueen, Young S. Lee, Zheng X. G.   +19 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

The Influence of Quartz Powder on the Mechanical–Thermal–Chemical–Durability Properties of Cement-Based Materials

Applied Sciences
Using industrial by-products to replace cement is an important way to reduce carbon emissions in the cement industry. The purpose of this article is to understand the effect of quartz powder on the properties of cement-based materials.
Gui-Yu Zhang, Seokhoon Oh, Chunhua Lu, Yi Han, Run-Sheng Lin, Xiao-Yong Wang   +5 more
doaj   +1 more source

Synthesis of superconducting pyrochlore RbOs2O6

, 2004
RbOs2O6, the third superconducting pyrochlore oxide (known so far), has been synthesized by encapsulation and by high pressure techniques. Suitable post chemical treatment of the as-prepared sample allowed us to eliminate the impurity phases.
B Batlogg, Brühwiler M Kazakov S M Zhigadlo N D Karpinski J Batlogg B, Hiroi Z Yonezawa S Muraoka Y, J Karpinski, M Brühwiler, N D Zhigadlo, S M Kazakov, Sakai H, Yonezawa S, Yonezawa S, Yonezawa S Muraoka Y Hiroi Z   +10 more
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source