Results 31 to 40 of about 11,020,427 (276)

Quantitative Analysis of Mineral Composition of Kyanite by X-ray Diffraction with Rietveld Refinement Method

Yankuang ceshi, 2019
BACKGROUND The content of minerals in kyanite can be analyzed by chemical phase method, but the analytical process is very tedious. Moreover, the existence of heteromorphism and refractory minerals can affect the accuracy of analysis results. An internal
RAN Jing, GUO Chuang-feng, DU Gu, WANG Feng-yu   +3 more
doaj   +1 more source

Robust Electrocaloric Performance Enabled by Highly‐Polar Frustrated Nanodomains in NaNbO3‐Based Ferrodistortive Relaxor

Advanced Functional Materials, EarlyView.
P4bm framework in NaNbO3‐Ba(Ti, Hf)O3 ferrodistortive relaxor entails short‐range and highly‐polar ferrodistortive orders. The abundant highly‐polar orders facilitate to increase entropy change, and robust octahedral oxygen tilt enables to impede thermal perturbations.
Feng Li, Changshun Dai, He Qi, Jiecheng Liu, Xiaoming Shi, Heng Zhou, Qiong Yang, Mingsheng Long, Lei Shan, Chunchang Wang, Jianli Wang, Zhenxiang Cheng   +11 more
wiley   +1 more source

Effect of the pH pre-adjustment on the formation of In2W3O12 and In6WO12 powders: Cluster coordination and optical band gap

Boletín de la Sociedad Española de Cerámica y Vidrio, 2020
In this communication, diindium tristungstate (In2W3O12) and hexaindium tungstate (In6WO12) powders were synthesized by the co-precipitation method at different pH values and heat treatment at 1073 K for 2 h.
Rafael Texeira de Paiva, Içamira Costa Nogueira, Júlio César Sczancoski, Pablo Santana Lemos, José Milton Elias Matos, Reginaldo Silva Santos, Elson Longo, Laécio Santos Cavalcante   +7 more
doaj   +1 more source

Evidence of ytterbium doping in YbxZn1-xO nanoparticles synthesized by polymer precursor method

Cerâmica, 2021
In this work, we report the synthesis of YbxZn1-xO nanoparticles (0.000 ≤x≤ 0.100) by polymer precursor method and the study of their vibrational and structural properties. Thermal analysis of the polymeric precursor showed that the thermal decomposition
M. S. L. Trindade, T. S. Silva, W. L. R. Pires, T. J. Castro   +3 more
doaj   +1 more source

Quantificação de fases argilominerais em matérias-primas cerâmicas pelo método de Rietveld [PDF]

, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013.O método de Rietveld é usado no refinamento das estruturas cristalinas dos materiais na forma de pó e na ...
Santos, Carla Margarete Ferreira dos
core  

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

Advanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon, Sangbin Park, Jaewoo Jung, Seongeun Lee, Chanwoo Jung, Min‐Sik Park, Won‐Sub Yoon   +6 more
wiley   +1 more source

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

Advanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi, Muhammad Wasim, Songhao Fu, Xiaojiao Liu, Annette K Kleppe, Zhilun Lu, Antonio Feteira, Diming Xu, Joseph C.A. Prentice, Ge Wang   +9 more
wiley   +1 more source

Assessing the neutron shielding potential of coconut shell and zircon sand: showcasing the potential effectiveness of zircon sand

Kuwait Journal of Science
The effectiveness of concrete radiation shielding is significantly influenced by the macroscopic cross-section values of its constituent materials. This parameter plays a crucial role in determining a material's ability to absorb neutrons, where higher ...
Sulistioso Giat Sukarya, Abdul Djamil Husin, Agus Salim Afrozi, Jan Setiawan, Auring Rachminisari, Agus Sunardi, Indra Gunawan, Ariyawan Sunardi, Putri Mulyani   +8 more
doaj   +1 more source

Síntese e caracterização de CaZrO3 e BaZrO3 nanoestruturados

Química Nova, 2013
In this work, nanostructured samples of barium zirconate (BaZrO3) and calcium zirconate (CaZrO3) were synthesized by the gel-combustion method, using glycine as fuel.
Amanda Laura Ibiapino, Laysa Pires de Figueiredo, Gustavo E. Lascalea, Rogério Junqueira Prado   +3 more
doaj   +1 more source

Delaney Rietveld Honors Portfolio [PDF]

, 2019
Delaney Rietveld\u27s honors portfolio captured in May ...
Rietveld, Delaney LaSalle
core