Atomic Structure and Properties of Dislocations and Interfaces in Two-Phase TiAl Compounds

1997 ◽  
pp. 355-370 ◽  
Author(s):  
V. Vitek ◽  
A. Girshick ◽  
R. Siegl ◽  
H. Inui ◽  
M. Yamaguchi
Keyword(s):  
Atomic Structure ◽  
Structure And Properties ◽  
Two Phase

scholarly journals The influence of melt atomic structure on structure and properties of amorphous Fe-based alloys

2008 ◽  
Vol 98 (7) ◽  
pp. 072007 ◽  
Author(s):  
V V Maslov ◽  
V I Lad'yanov ◽  
A G Ilinsky ◽  
V K Nosenko
Keyword(s):  
Atomic Structure ◽  
Structure And Properties

scholarly journals Structures and properties of phosphate-based bioactive glasses from computer simulation: a review

2017 ◽  
Vol 5 (27) ◽  
pp. 5297-5306 ◽  
Author(s):  
Jamieson K. Christie ◽  
Richard I. Ainsworth ◽  
Sergio E. Ruiz Hernandez ◽  
Nora H. de Leeuw
Keyword(s):  
Computer Simulation ◽  
Computer Simulations ◽  
Atomic Structure ◽  
Phosphate Glasses ◽  
Structure And Properties ◽  
Bioactive Glasses ◽  
Structures And Properties

Computer simulations have enabled breakthroughs in understanding the connections between the atomic structure and properties of bioactive phosphate glasses.

Preparation and Study of (1-m)(Mg0.8Zn0.2)TiO3·m{Ba4Nd28/3Ti18O54·0.18Bi2O3} Microwave Dielectric Ceramics

2014 ◽  
Vol 616 ◽  
pp. 166-173
Author(s):  
Xiao Li Ji ◽  
Peng Fei Hu ◽  
Song Zhang ◽  
Cheng C. Zhai ◽  
Fang Yi
Keyword(s):  
Dielectric Properties ◽  
Composite System ◽  
Sintering Temperature ◽  
Microwave Dielectric Ceramic ◽  
Microwave Dielectric Ceramics ◽  
Structure And Properties ◽  
Dielectric Ceramic ◽  
Two Phase ◽  
Microwave Dielectric ◽  
Dielectric Ceramics

In this work, the microwave dielectric ceramic (1-m)(Mg0.8Zn0.2)TiO3·m{Ba4Nd28/3Ti18O54·0.18Bi2O3}(m=0.1~0.4)(MZT-BNT) was studied to improve dielectric properties. The results of the dielectric properties, density, XRD and SEM show that the value of m and the sintering temperature affected the structure and properties of the ceramics. MZT-BNT composite system is a two-phase composite system. With the adding of BNT, the dielectric properties of MZT increase significantly. As m value increases, the bulk density and the dielectric constant of the composite system increase, while the quality factor reduces and the temperature coefficient of resonant frequency is close to zero. The dielectric properties of MZT-BNT sintered at 1200 °C (m = 0.3) are εr = 34.03, Qf = 7177 GHz,τf = -3.39 ppm/°C, respectively.

Dislocations, twins, grain boundaries and interfaces in diamond CVD thin films: Atomic structure and properties

Carbon ◽  
1990 ◽  
Vol 28 (6) ◽  
pp. 775 ◽  
Author(s):  
J. Narayan ◽  
A.S. Nandedkar ◽  
G. Matera ◽  
M. Lango ◽  
A. Rengan ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Boundaries ◽  
Atomic Structure ◽  
Structure And Properties

Structure and Properties of The Oxygen Donor

1985 ◽  
Vol 59 ◽  
Author(s):  
L. C. Kimerling
Keyword(s):  
Wave Function ◽  
Electrical Activity ◽  
Effective Mass ◽  
Atomic Structure ◽  
Active Site ◽  
Aggregation Process ◽  
Structure And Properties ◽  
Oxygen Donor ◽  
Heavily Doped ◽  
Donor Character

ABSTRACTDuring aggregation, an assembly of oxygen atoms in silicon produces an electrically active site. The center is an effective mass, helium-like center (double donor) with a wave function of C2v symmetry. The formation reactions of the assembly reveal details of the invisible early stages of aggregation. The donor character of the center controls the aggregation process in heavily doped material. The atomic structure and the source of the electrical activity of the center remain unresolved.

THE STRUCTURE AND PROPERTIES OF IRON ALLOYS WITH VARIOUS CHEMICAL COMPOSITIONS AFTER DIFFUSIONAL BORONIZING

Tribologia ◽  
2017 ◽  
pp. 65-71 ◽  
Author(s):  
Aleksandra PERTEK-OWSIANNA
Keyword(s):  
Wear Resistance ◽  
Chemical Composition ◽  
Boride Layer ◽  
Alloying Elements ◽  
Chemical Compositions ◽  
Test Results ◽  
Structure And Properties ◽  
Two Phase ◽  
Phase Layer ◽  
The Core

The purpose of the paper was to test how the content of carbon and alloying elements in steels influence the structure and properties of boronized layers. The following grades of steels were used during the tests: C45, C99U, 41Cr4, 42CrMo4, 45SG, 50HS, 60G, and 102Cr6. In the process of boronizing, the two-phase layer of borides of FeB and Fe2B were obtained on the tested steels with a hardness from 1900 HV0.1 for boride FeB to 1600 HV0.1 for Fe2B, irrespective of the chemical composition of the core/substrate. As the kontent of carbon and alloying elements in steels increase, the structure of borides becomes more compact, and the needles are thicker. The richer in alloying elements the core and the more carbon in steel, the thinner is the boride layer. After boronizing, the layer of FeB and Fe2B with a thickness of approx. 110 μm for C45 steel to approx. 90 μm for 102Cr6 steel was obtained. The test results indicate that the brittleness of borides increases in steels with the addition of Cr, and it decreases in steels containing Si and Mn. The highest wear resistance was obtained in steel 102Cr6.

scholarly journals Atomic Structure and Properties of Charged Domain Walls in BiFeO3 Films

2013 ◽  
Vol 19 (S2) ◽  
pp. 1654-1655 ◽  
Author(s):  
L. Li ◽  
P. Gao ◽  
C. Nelson ◽  
Y. Zhang ◽  
S.-J. Kim ◽  
...  
Keyword(s):  
Atomic Structure ◽  
Domain Walls ◽  
Structure And Properties

Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.

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