Results 91 to 100 of about 55,060 (259)

‘These reforms have teeth’: The affective dimensions of teacher education policy enactment

British Educational Research Journal, EarlyView.
Abstract The affective dimensions of education policy enactment have often received less attention in the research literature, especially regarding teacher education policy. This article reports on a study of the affective responses of university‐based teacher educators in England to the significant initial teacher education reforms of 2019–2022: the ...
Ian Cushing, Viv Ellis
wiley   +1 more source

Vickers Hardness Mechanical Models and Thermoplastic Polymer Injection-Molded Products’ Static Friction Coefficients

Journal of Manufacturing and Materials Processing
The surface mechanical properties of thermoplastics are crucially important for evaluating molded products’ vulnerability to scratching. Because surface mechanical properties reflect material performance directly in terms of durability and frictional ...
Tetsuo Takayama
doaj   +1 more source

Effect of surface pretreatments on the deposition of polycrystalline diamond on silicon nitride substrates using hot filament chemical vapor deposition method [PDF]

, 2009
The deposition of diamond films on a silicon nitride (Si3N4) substrate is an attractive technique for industrial applications because of the excellent properties of diamond. Diamond possesses remarkable physical and mechanical properties such as chemical
Awang Sh'ri, Dayangku Noorfazidah
core   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Brittleness index and its relationship with materials mechanical properties: Influence on the machinability of CAD/CAM materials

Brazilian Oral Research, 2019
: The aim of this study is to evaluate the machinability of four CAD/CAM materials (n = 13) assessed by brittleness index, Vickers hardness, and fracture toughness and interaction among such mechanical properties.
Thiago Soares Porto, Renato Cassio Roperto, Sorin Theodor Teich, Fady Fouad Faddoul, Fabio Antonio Piolla Rizzante, Sizenando de Toledo Porto-Neto, Edson Alves de Campos   +6 more
doaj   +1 more source

Leveraging Deep Neural Networks for Estimating Vickers Hardness from Nanoindentation Hardness. [PDF]

Materials (Basel), 2023
Niu J, Miao B, Guo J, Ding Z, He Y, Chi Z, Wang F, Ma X.   +7 more
europepmc   +1 more source

DFT Insight Into Physical Properties of Halide Ions Replacements in Oxo‐Selenate Halide Compounds for Photovoltaic Application

Energy Science &Engineering, EarlyView.
Using density functional theory (CASTEP, GGA–PBE), the structural, electronic, optical, and mechanical properties of YSeO₃X (X = F, Cl, Br, and I) compounds are systematically investigated. The materials have exhibited structural stability, tunable band gaps, strong optical absorption, anisotropic ductile behavior, and promising potential for ...
Nawishta Jabeen, Ahmad Hussain, Ali Yaqoob, Omer Musa, Aseel Smerat, Joy Djuansjah   +5 more
wiley   +1 more source

Strategy of Sintering Ceramics Under Extreme Conditions

Interdisciplinary Materials, EarlyView.
Novel strategies in extreme sintering technologies, which include ultrafast sintering, strong electric field‐assisted sintering, high‐pressure and ultra‐high‐pressure sintering, and multi‐field assisted sintering, and so on. ABSTRACT Advanced ceramics play a critical role in high‐tech industries.
Shuai Fu, Weimin Wang, Hanxing Liu, Wei Ji   +3 more
wiley   +1 more source

Tensile properties and hardness of two types of 11Cr-ferritic/martensitic steel after aging up to 45,000 h

Nuclear Materials and Energy, 2016
The relationship among tensile strength, Vickers hardness and dislocation density for two types of 11Cr-ferritic/martensitic steel (PNC-FMS) was investigated after aging at temperatures between 400 and 800°C up to 45,000h and after neutron irradiation. A
Y. Yano, T. Tanno, Y. Sekio, H. Oka, S. Ohtsuka, T. Uwaba, T. Kaito   +6 more
doaj   +1 more source

Impression of Vickers Hardness (Part 2)

Journal of the Japan Society of Precision Engineering, 1959
In this report, the Vickers impression is investigated on the flatness of its pyramid surface and the figure on the specimen surface. Steel and brass are used for a specimen to be tested The pyramid surfaces are always convex and there is the highest point at the center.
Nobuyuki OHTA, Chikao YOKONO, Seigo SANO
openaire   +2 more sources