Results 111 to 120 of about 8,939 (232)

Unraveling the Origin of Donor‐Like Effect in Bismuth–Telluride‐Based Thermoelectric Materials

Small Science
The donor‐like effect, depicting the uncontrollable increase of electron density that can significantly alter the thermoelectric performance of both p‐type and n‐type polycrystalline Bi2Te3‐based materials, has long been an intriguing phenomenon, while ...
Feng Liu, Min Zhang, Pengfei Nan, Xin Zheng, Yuzheng Li, Kang Wu, Zhongkang Han, Binghui Ge, Xinbing Zhao, Chenguang Fu, Tiejun Zhu   +10 more
doaj   +1 more source

Microstructural modelling of creep crack growth from a blunted crack [PDF]

, 1998
The effect of crack tip blunting on the initial stages of creep crack growth is investigated by means of a planar microstructural model in which grains are represented discretely. The actual linking-up process of discrete microcracks with the macroscopic
Giessen, E. van der, Onck, P.R.,, Onck, P.R., Giessen, E. van der; id_orcid, Giessen, E. van der,   +4 more
core  

Modeling the Thermoelastic-Viscoplastic

, 2007
Conventional methodologies towards polycrystal plasticity use an aggregate of single crystals and this choice of the aggregate a#ects the response of the polycrystal.
Shankar Ganapathysubramanian, Response Of Polycrystals, Nicholas Zabaras   +2 more
core  

Processing, Microstructure and Mechanical Properties of TiB₂-MoSi₂-C Ceramics

Crystals
Titanium boride (TiB2) is a material classified as an ultra-high-temperature ceramic. The TiB2 structure is dominated by covalent bonds, which gives the materials based on TiB2 very good mechanical and thermal properties, making them difficult to sinter ...
Maria Sajdak, Kamil Kornaus, Dariusz Zientara, Norbert Moskała, Sebastian Komarek, Kinga Momot, Edmund Golis, Łukasz Zych, Agnieszka Gubernat   +8 more
doaj   +1 more source

Machine learning interatomic potential with DFT accuracy for general grain boundaries in α-Fe

npj Computational Materials
To advance the development of high-strength polycrystalline metallic materials towards achieving carbon neutrality, it is essential to design materials in which the atomic level control of general grain boundaries (GGBs), which govern the material ...
Kazuma Ito, Tatsuya Yokoi, Katsutoshi Hyodo, Hideki Mori   +3 more
doaj   +1 more source

How do the grains slide in fine-grained zirconia polycrystals at high temperature?

, 2007
International audienceDegradation of mechanical properties of zirconia polycrystals is hardly discussed in terms of solution-precipitation grain-boundary sliding due to experimental controversies over imaging of intergranular amorphous phases at high and
Daraktchiev, M., Fantozzi, Gilbert, Schaller, R., Epicier, Thierry, Chevalier, Jérome, Gremillard, Laurent   +5 more
core   +1 more source

Fatgue of Two-Phase Iron Polycrystals

, 1971
Quench-aged low carbon iron specimens, containing various distributions of carbide particles were fatigued in tension-compression under low amplitude strain control.
Brown, Malcolm
core  

The Distribution of Internal Interfaces in Polycrystals

, 2003
This work was supported by the MRSEC program of the National Science Foundation under Award Number DMR-0079996. Recent advances both in experimental instrumentation and computing power have made it possible to interrogate the distribution of internal ...
Rohrer, Gregory S., Adams, Brent L., El-Dasher, Bassem S., Wynblatt, Paul, Saylor, David M., Rollett, Anthony D.   +5 more
core  

Stability of discontinuities in polycrystals

, 1999
An abstract is not available.
Brocato M., Ehrlacher A., Tamagny P.
openaire   +4 more sources

Macroscopic behavior, field fluctuations and texture evolution in viscoplastic polycrystals

, 2003
This study focuses on two fundamental aspects of polycrystalline plasticity, i.e. accurate homogenization models for the macroscopic behavior and field fluctuations in viscoplastic polycrystals, and simulation of the texture evolution of polycrystalline ...
Liu, Yi
core