Thermodynamic stability, structure and properties of Fe-based C+N austenite and martensite

2003 ◽  
Vol 112 ◽  
pp. 259-262 ◽  
Author(s):  
V. G. Gavriljuk ◽  
A. I. Tyshchenko ◽  
J. Rawers ◽  
H. Berns
Keyword(s):  
Thermodynamic Stability ◽  
Structure And Properties ◽  
Stability Structure

scholarly journals Thermochemical electronegativities of the elements

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Christian Tantardini ◽  
Artem R. Oganov
Keyword(s):  
Solid State ◽  
Chemical Bonding ◽  
Structural Chemistry ◽  
Solid State Chemistry ◽  
Structure And Properties ◽  
Bond Energies ◽  
Dimensionless Numbers ◽  
Bond Polarity ◽  
Stability Structure ◽  
Definition Of

AbstractElectronegativity is a key property of the elements. Being useful in rationalizing stability, structure and properties of molecules and solids, it has shaped much of the thinking in the fields of structural chemistry and solid state chemistry and physics. There are many definitions of electronegativity, which can be roughly classified as either spectroscopic (these are defined for isolated atoms) or thermochemical (characterizing bond energies and heats of formation of compounds). The most widely used is the thermochemical Pauling’s scale, where electronegativities have units of eV−1/2. Here we identify drawbacks in the definition of Pauling’s electronegativity scale—and, correcting them, arrive at our thermochemical scale, where electronegativities are dimensionless numbers. Our scale displays intuitively correct trends for the 118 elements and leads to an improved description of chemical bonding (e.g., bond polarity) and thermochemistry.

Surface structure and energetics of low index facets of bismuth ferrite

2020 ◽  
Vol 22 (28) ◽  
pp. 16400-16406
Author(s):  
Dennis Trujillo ◽  
Ayana Ghosh ◽  
Serge M. Nakhmanson ◽  
Sanjubala Sahoo ◽  
S. Pamir Alpay
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Surface Structure ◽  
Electronic Properties ◽  
Thermodynamic Stability ◽  
Bismuth Ferrite ◽  
Chemical Potentials ◽  
Stability Structure

Thermodynamic stability, structure and electronic properties of BiFeO3 surfaces depend on oxygen partial pressure and chemical potentials of bismuth and iron.

Structure of second phases in TiAl alloys containing Cr and B

1991 ◽  
Vol 49 ◽  
pp. 576-577
Author(s):  
Ernest L. Hall ◽  
Shyh-Chin Huang
Keyword(s):  
Grain Size ◽  
Second Phase ◽  
Structure And Properties ◽  
Tial Alloys ◽  
Second Phases ◽  
Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

Relationships between hierarchical structure and properties in macromolecular systems

1987 ◽  
Vol 45 ◽  
pp. 440-443
Author(s):  
E. Baer
Keyword(s):  
Uniaxial Tension ◽  
Hierarchical Structure ◽  
Inorganic Material ◽  
Hierarchical Structures ◽  
Bone Collagen ◽  
Structure And Properties ◽  
Connective Tissues ◽  
Scale Level ◽  
Fibrous Protein ◽  
Macromolecular Systems

The most advanced macromolecular materials are found in plants and animals, and certainly the connective tissues in mammals are amongst the most advanced macromolecular composites known to mankind. The efficient use of collagen, a fibrous protein, in the design of both soft and hard connective tissues is worthy of comment. Very crudely, in bone collagen serves as a highly efficient binder for the inorganic hydroxyappatite which stiffens the structure. The interactions between the organic fiber of collagen and the inorganic material seem to occur at the nano (scale) level of organization. Epitatic crystallization of the inorganic phase on the fibers has been reported to give a highly anisotropic, stress responsive, structure. Soft connective tissues also have sophisticated oriented hierarchical structures. The collagen fibers are “glued” together by a highly hydrated gel-like proteoglycan matrix. One of the simplest structures of this type is tendon which functions primarily in uniaxial tension as a reinforced elastomeric cable between muscle and bone.

The Structure and Properties of MoSi2 Thin Film in Mos Process

1980 ◽  
Vol 38 ◽  
pp. 326-327
Author(s):  
C.K. Wu ◽  
P. Chang ◽  
N. Godinho
Keyword(s):  
Thin Film ◽  
Integrated Circuits ◽  
High Performance ◽  
Large Scale ◽  
Process Development ◽  
Structure And Properties ◽  
Metal Silicides ◽  
High Oxidation ◽  
Important Approach ◽  
High Oxidation Resistance

Recently, the use of refractory metal silicides as low resistivity, high temperature and high oxidation resistance gate materials in large scale integrated circuits (LSI) has become an important approach in advanced MOS process development (1). This research is a systematic study on the structure and properties of molybdenum silicide thin film and its applicability to high performance LSI fabrication.

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