Results 81 to 90 of about 41,115 (343)

Electric field assisted spark plasma sintering of ABO3 perovskites: Crystal structure, dielectric behavior and future challenges

Open Ceramics
Plenty of traditional and novel sintering techniques have been utilized to enhance the performance of perovskite materials. Among several sintering methods, electric field-assisted spark plasma sintering (SPS) is a modern category and has been effective ...
Subramani Supriya
doaj   +1 more source

Enhancing Thermoelectric Properties of Si80Ge20 Alloys Utilizing the Decomposition of NaBH4 in the Spark Plasma Sintering Process

Energies, 2015
The thermoelectric properties of spark plasma sintered, ball-milled, p-type Si80Ge20-(NaBH4)x (x = 0.7,1.7 and 2.7), and Si80Ge20B1.7-y-(NaBH4)y (y = 0.2 and 0.7) samples have been investigated from 30 K to 1100 K.
Ali Lahwal, Xiaoyu Zeng, Sriparna Bhattacharya, Menghan Zhou, Dale Hitchcock, Mehmet Karakaya, Jian He, Apparao M. Rao, Terry M. Tritt   +8 more
doaj   +1 more source

Microstructure of Spark Plasma-Sintered Silicon Nitride Ceramics

Nanoscale Research Letters, 2017
The microstructure and phase composition of the high-content Al2O3-Y2O3-doped spark plasma-sintered silicon nitride were investigated. Fully dense silicon nitride ceramics with a typical α-Si3N4 equiaxed structure with average grain size from 200 to 530 nm, high elastic modulus of 288 GPa, and high hardness of 2038 HV were spark plasma sintered (SPSed)
Lukianova, O. A., Novikov, V. Yu., Parkhomenko, A. A., Sirota, V. V., Krasilnikov, V. V.   +4 more
openaire   +4 more sources

Growth of Millimeter‐Sized BaTaO2N Single Crystals by an NH3‐Assisted BaCl2 Flux Method

Advanced Functional Materials, EarlyView.
Millimeter‐sized BaTaO2N single crystals are successfully grown from a BaCl2 flux under NH3 flow. Their comprehensive characterization, including dielectric properties, is demonstrated, and the possible growth mechanisms are discussed. Abstract Perovskite‐type oxynitrides have attracted considerable attention due to their excellent photocatalytic ...
Ginji Harada, Mirabbos Hojamberdiev, Hajime Wagata   +2 more
wiley   +1 more source

Influence of different sintering techniques on the wear properties of Al-15Si-2.5Cu-0.5Mg/B4C composites [PDF]

Science of Sintering
In this study, the influences of different sintering techniques and B4C particle addition on microstructural properties, density, hardness and abrasive wear were investigated.
Ozer Melika, Kaplan Yavuz, Ozer Alpay, Aksoz Sinan   +3 more
doaj   +1 more source

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

Advanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu, Xinyi Zhang, Lan Wen, Hongjiang Chen, Yudhistira Tirtayasri Amrillah, Vivi Fauzia, Hongzhen Dong, Shaoqiang Su, Wenjun Luo, Ferry Anggoro Ardy Nugroho, Patrick H.‐L. Sit, Yun Hau Ng, Fatwa F. Abdi   +12 more
wiley   +1 more source

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang   +7 more
wiley   +1 more source

Constitutive behavior and microstructural evolution in Ti–Al–Si ternary alloys processed by mechanical milling and spark plasma sintering

Journal of Materials Research and Technology, 2020
Severe plastic deformation is closely related to the microstructural behaviors of intermetallics or grain refinement by mechanical milling and subsequent rapid sintering process, i.e. high energy ball milling and spark plasma sintering.
Jeong-Han Lee, Hyun-Kuk Park, Ju-Hun Kim, Jun-Ho Jang, Sung-Kil Hong, Ik-Hyun Oh   +5 more
doaj   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Evaluation of Microstructure and Mechanical Properties of Al-TiC Metal Matrix Composite Prepared by Conventional, Microwave and Spark Plasma Sintering Methods

Materials, 2017
In this research, the mechanical properties and microstructure of Al-15 wt % TiC composite samples prepared by spark plasma, microwave, and conventional sintering were investigated.
E. Ghasali, A. Fazili, M. Alizadeh, K. Shirvanimoghaddam, T. Ebadzadeh   +4 more
semanticscholar   +1 more source