Results 271 to 280 of about 16,306,003 (350)

Phase formation and thermal stability of CoCrFeNi and CoCrFeMnNi equiatomic high entropy alloys

Journal of Alloys and Compounds, 2019
The present work focuses on the phase evolution and thermal stability of CoCrFeNi and CoCrFeMnNi equiatomic high entropy alloys in the temperature range 1073–1373 K. For comprehensive understanding, phase stability of ternary CoFeNi has also been studied
M. Vaidya, K. Guruvidyathri, B. S. Murty
semanticscholar   +1 more source

Developmental Pattern Formation in Phases

Trends in Cell Biology, 2015
Cells in developing organs undergo a series of changes in their transcriptional state until a complete repertoire of cell types is specified. These changes in cell identity, together with the control of tissue growth, determine the pattern of gene expression in the tissue.
Anna, Kicheva, James, Briscoe
openaire   +2 more sources

Study on the element segregation and Laves phase formation in the laser metal deposited IN718 superalloy by flat top laser and gaussian distribution laser

Materials Science & Engineering: A, 2019
The element segregation, Laves phase formation, and mechanical properties of the laser metal deposited IN718 superalloy by the flat top laser beam (FTLB) and gaussian distribution laser beam (GDLB) are studied.
Yuan Chen, Yanbing Guo, Mengjia Xu, Chunfei Ma, Qunli Zhang, Liang Wang, Jianhua Yao, Zhuguo Li   +7 more
semanticscholar   +1 more source

Effects of mixing enthalpy and cooling rate on phase formation of AlxCoCrCuFeNi high-entropy alloys

Materialia, 2019
We investigated the influence of mixing enthalpy and cooling rate on phase formation and selected the melt-spun Al x CoCrCuFeNi (x = 0, 0.1, 0.5, 0.8 and 1.0 in molar ratios) high-entropy alloys (HEAs) as a model system. The mean mixing enthalpy (ΔH mix )
Xiao Xu, Sheng Guo, T. Nieh, T. Nieh, C. Liu, A. Hirata, Mingwei Chen, Mingwei Chen   +7 more
semanticscholar   +1 more source

Study on phase formation in magnetic FeCoNiMnV high entropy alloy produced by mechanical alloying

Journal of Alloys and Compounds, 2019
At the present work, FeCoNiMnV high entropy alloy is successfully synthesized by ball milling and the magnetic properties are evaluated in terms of the structure.
F. Alijani, M. Reihanian, Kh. Gheisari
semanticscholar   +1 more source

Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity

Science, 2021
Perovskite synthesis out in the open Although methods have been developed that create the photoactive black perovskite phase of formamidinium lead iodide (α-FAPbI3), these routes are temperature and humidity sensitive and less compatible with large-scale
W. Hui, Lingfeng Chao, Hui Lu, Fei Xia, Qi Wei, Zhenhuang Su, Tingting Niu, Lei Tao, B. Du, Deli Li, Yue Wang, He Dong, Shouwei Zuo, Bixin Li, Weiwei Shi, Xueqin Ran, P. Li, Hui Zhang, Zhongbin Wu, Chenxin Ran, Lin Song, G. Xing, Xingyu Gao, Jing Zhang, Yingdong Xia, Yonghua Chen, Wei Huang   +26 more
semanticscholar   +1 more source

Understanding ferroelectric phase formation in doped HfO2 thin films based on classical nucleation theory.

Nanoscale, 2019
Ferroelectricity in doped HfO2 thin films has attracted increasing attention since 2011. The origin of the unexpected ferroelectric property is now accepted as the formation of the noncentrosymmetric Pca21 orthorhombic phase.
M. Park, Young Hwan Lee, C. Hwang
semanticscholar   +1 more source

Modeling of metastable phase formation for sputtered Ti1-xAlxN thin films

Acta Materialia, 2019
Metastable titanium aluminum nitride coatings are widely applied in cutting and forming applications. Although it is generally accepted that the phase formation of metastable TiAlN is governed by kinetic factors, modeling attempts today are based solely ...
Sida Liu, Keke Chang, S. Mráz, Xiang Chen, M. Hans, D. Music, D. Primetzhofer, J. Schneider   +7 more
semanticscholar   +1 more source

Phase formation during reactive molybdenum-silicide formation

Journal of Materials Research, 1990
Silicide formation due to thermal treatment of thin (5–10 nm) molybdenum films on single-crystal, polycrystalline, and hydrogenated amorphous silicon substrates in the temperature range of 100 to 1000 °C was studied, with an emphasis on the initial interactions. The molybdenum deposition, annealing, and characterization using Raman scattering and Auger
C. M. Doland, R. J. Nemanich
openaire   +1 more source

Phase formations in Co–Silicon system

Microelectronic Engineering, 2004
Interactions between thin cobalt, 40 nm, and a thick - 250 nm - silicon film were investigated by in situ sheet resistance measurements. Poly and amorphous silicon films, both deposited by CVD, were used. MeV 4He+ Rutherford Backscattering and X-ray diffraction techniques were used to infer the kinds and thicknesses of the compounds formed.
CORNI, Federico, TONINI, Rita, OTTAVIANI, Giampiero, S. ALBERICI, D. ERBETTA, T. MARANGON   +5 more
openaire   +1 more source