Contact Interaction of Zirconium Diboride with Nickel and Nickel Alloys. II. Contact Interaction in the Zirconium Boride–Nichrome System

Powder Metallurgy and Metal Ceramics - Zirconium boride–nichrome (Ni–20 Cr) interaction at zirconium boride concentration in the charge varying from 3.6 to 60% and at annealing...     

Temperature–Composition Dependence of Thermodynamic Mixing Functions of Co–Cr–Cu–Fe–Ni Melts

Powder Metallurgy and Metal Ceramics - In the framework of the CALPHAD method, a thermodynamic database was developed for calculating the thermodynamic properties of liquid alloys in the...     

Contact Interaction of Zirconium Diboride with Nickel and its Alloys. I. The Features of Contact Interaction in the ZrB2–Ni System

Powder Metallurgy and Metal Ceramics - The interaction in the ZrB2–Ni system with change in the ZrB2 content from 3.5 to 75 wt.% has been studied. It is shown that the process occurs through...     

Electron Concentration Dependence of Transformation Temperature in Different NiMnGa Alloys with First Order Magnetic Transition

Electron Concentration Dependence of Transformation Temperature in Different NiMnGa Alloys with First Order Magnetic Transition     

Interaction of Cerium Oxide with Hafnium,Zirconium, and Yttrium Oxides at 1500°C

Using the methods of x-ray diffraction and petrographic analysis as well as electron microscopy, phase relationships in the ternary systems ZrO₂ Y₂O₃ CeO₂ and HfO₂ Y₂O₃ CeO₂ were investigated over the entire range of concentrations at 1500°C. The accuracy of the phase relationships of the binary systems HfO₂ CeO₂, ZrO₂ CeO₂, and CeO₂ Y₂O₃ at this temperature was improved. Isothermal sections of the ternary phase diagrams at 1500°C were constructed. Specimens of various compositions were prepared from nitrate solutions by evaporating, drying, and heat treating at 1500°C. These systems are characterized by the formation of broad ranges of solid solutions based on C-Y₂O₃, F-CeO₂, F-HfO₂ and ZrO₂, and narrow ranges based on T-ZrO₂ and M-HfO₂. No new phases were detected. The course of isoparametric lines in the solid solution ranges of F-HfO₂ (ZrO₂) leads to the assumption that yttrium and cerium ions substitute for each other, but no appreciable substitution by them for zirconium or hafnium ions occurs.     

Interaction of Titanium Diboride with Nickel and Ni–20% Cr Alloy (Nichrome)

Powder Metallurgy and Metal Ceramics - The interaction in the Ni–Ti–B and Ni–Ti–B–Cr systems along the Ni–TiB2 and (Ni–20% Cr)–TiB2 sections was...     

Contact and Capillary Processes in Systems Promising for Brazing: Eutectic Melts of Niobium with Cobalt,Nickel, and Iron–Nonmetallic Al2O3–SiO2 and AlN–TiN Materials

Powder Metallurgy and Metal Ceramics - The contact and capillary processes that occur in the interaction of eutectic Nb melts containing Co, Ni, and Fe with Al2O3–SiO2 and AlN–TiN solid...     

Structural and Optical Properties Correlation of Nickel Doped Magnesium–Titanium Alloys with Sorption Kinetics Reaction for Hydrogen Storage Application

In this work, synthesis of Ni doped Mg–Ti nanostructured alloys were made using mechanical alloying method. The structural and optical properties of Mg–Ti alloys were studied by X-Ray diffraction (XRD), UV–Vis spectroscopy and Density Functional theoritical (DFT) studies. The electrochemical performance of Mg–Ti alloys was studied by cyclic voltammetry and impedance studies. The XRD pattern of 20 h milled powders revealed the formation of Mg(Ti) solid solution, Mg₂Ni and TiNi compounds. DFT studies confirmed the strong modification of the valence band structure of the Ni doped Mg–Ti alloys which could significantly hasten the hydrogenation and dehydrogenation properties. UV–Vis spectrum revealed increase in band gap energy due to blue shift and hyperchromic shift in both absorption and transmission peaks. Obviously, electrochemical studies revealed high exchange current density and Warburg impedance, as well as decrease in diffusion coefficient and charge transfer resistance. Ultimately, it showed the result of high catalytic activity and faster kinetic reaction rates for the good reversibility of hydrogen ions.     

The Co–Ni–Zr Phase Diagram in the Zr–ZrCo–ZrNi Region II. Liquidus Surface of the Phase Diagram. Interaction of Alloys with Hydrogen

Powder Metallurgy and Metal Ceramics - The results of microstructural, X-ray diffraction, differential thermal, and electron microprobe analyses of Zr–ZrCo–ZrNi cast alloys were used to...     

In Situ Bulk Observations and Ab Initio Calculations Revealing the Temperature Dependence of Stacking Fault Energy in Fe–Cr–Ni Alloys

Metallurgical and Materials Transactions A - The dependence of stacking fault energy ( $${\gamma }_{\text{SFE}}$$ ) on temperature in austenitic Fe–Cr–Ni alloy powders was investigated...     

A Thermodynamic Study on the Effect of Solute on the Nucleation Driving Force,Solid–Liquid Interfacial Energy,and Grain Refinement of Al Alloys

Metallurgical and Materials Transactions A - Chemical composition is known to have significant effects on the grain refinement behavior of inoculated Al alloys during solidification. In this study,...     

The relationship of workaholism with work–life conflict, life satisfaction, and purpose in life.

This study examined the differences between 2 types of workaholics (enthusiastic and nonenthusiastic workaholics) and nonworkaholic workers (work enthusiasts, relaxed workers, unengaged workers, and disenchanted workers) with respect to work–life conflict, life satisfaction, and purpose in life in a sample of 171 salaried employees of a high technology organization. Results differed for the 2 types of workaholics, supporting the importance of continued differentiation of workaholic types. Nonenthusiastic workaholics were found to have significantly more work–life conflict and significantly less life satisfaction and purpose in life than 3 of the 4 types of nonworkaholics. Enthusiastic workaholics were found to have significantly more life satisfaction and purpose in life than nonenthusiastic workaholics and significantly more work–life conflict than 3 of the 4 nonworkaholics. Implications for career planning and counseling are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Skewed autonomy–relatedness in preadolescents' conceptions of their relationships with mother, father, and best friend.

Healthy adaptation within all close relationships—whether with parents, friends. or romantic partners—involves striking a balance between connectedness to and independence from the relationship partner. For some individuals, adaptation within one or more relationships is skewed, or characterized by either an excessive concern for closeness that impedes autonomy (preoccupied stance) or an excessive concern for autonomy that inhibits closeness (avoidant stance). In this study with boys and girls aged 9–14 years, children who reported a preoccupied or avoidant stance toward their mother displayed increased social impairment in the peer group over time. There were predictable associations among children's stances toward mother, father, and best friend. Children resembled their best friend in relationship stance. The study illustrates the advantages of applying common relationship constructs (e.g., autonomy-relatedness) to the study of diverse close relationships. (PsycINFO Database Record (c) 2010 APA, all rights reserved)