Results 261 to 270 of about 4,656 (308)

Surface Engineering through Pack Cementation Processes

ECS Meeting Abstracts, 2011
Abstract not Available.
Vilupanur A. Ravi, Alejandro Cuevas, Kimberly Schumann, Christopher Simpson, Marcelino Rubio, Andrew Schissler, Alexander Ly, Bradley Harrison, Thuan Nguyen, Andrew Lech, Richard Kaner, Bruce A. Pint, James Haynes   +12 more
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Superfine cement for improving packing density, rheology and strength of cement paste

Cement and Concrete Composites, 2012
Abstract Superfine cement is a cement ground to a much higher fineness than ordinary cement. The addition of a small quantity of superfine cement to fill into the voids of ordinary cement can improve the packing density of the cement and thereby reduce the amount of mixing water needed to fill the voids. In this study, the effects of superfine cement
Chen, JJ, Kwan, AKH
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Codepositing elements by halide-activated pack cementation

JOM, 1991
The codeposition of two or more elements in a halide-activated cementation pack is inherently difficult because of large differences in the thermodynamic stabilities for their volatile halides. However, through a computer-assisted analysis of the pack equilibria, combinations of suitable master alloys and activator salts can be identified.
Robert Bianco, Mark A. Harper, Robert A. Rapp   +2 more
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Synthesis of higher manganese silicides by pack cementation

AIP Conference Proceedings, 2019
Higher Manganese Silicides (HMS), commonly referred to as MnSi1.7, have currently attracted great attention due to their potential use in high temperature thermoelectric applications. These compounds demonstrate attractive thermoelectric properties –with a maximum value of figure of merit ZT at least 0.7 for the undoped material –good thermal and ...
Aikaterini Teknetzi, Dimitrios Stathokostopoulos, Evangelia Tarani, Adamantios Margaronis, Euripides Hatzikraniotis, Eleni Pavlidou, Konstantinos Chrissafis, George Vourlias   +7 more
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Metallurgical properties of boride layers formed in pack boronized cementation steel

Materials Testing, 2022
Abstract In the present study, cementation steel was exposed to boronizing process at 950 °C for 6, 8, and 10 h. Microstructural changes on the surface of the samples after boron operation were inspected by optical microscope, scanning electron microscope, energy-dispersive spectroscopy, X-ray diffraction, electron back-scatter ...
Teker, Tanju, Sarı, Murat
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Particle Packing Density and Limestone Fillers for More Sustainable Cement

Key Engineering Materials, 2012
Cement blending with mineral admixtures, especially with byproduct or waste product powder, can effectively reduce consumption of cement and promote the ecology. Recently, an innovative concept was proposed to replace of coarse cement grains by the inert fillers for sustainable cement in the low w/c concrete cement.
He, Huan, Courard, Luc, Pirard, Eric
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Oxidation Behavior of Pack-Cemented Refractory High-Entropy Alloy

JOM, 2020
In this study, Al pack cementation was conducted on a high-entropy alloy (HEA), and the oxidation behavior of the pack-cemented HEA was investigated. The alloy was fabricated via powder metallurgy (PM). Al pack cementation was performed at 500°C and 800°C for up to 5 h.
Won June Choi, Chun Woong Park, Yongwook Song, Hyunjoo Choi, Jongmin Byun, Young Do Kim   +5 more
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Microstructural characterization of fresh cement paste via random packing of ellipsoidal cement particles

Materials Characterization, 2012
Abstract At the microscopic scale, fresh cement paste is composed of random packing of irregular cement particles and their packing behavior plays an important role in microstructural evolution. The preponderance of previous work has focused on the microstructural model by random packing of spherical or two-dimensional (2D) elliptical particles, and ...
W.X. Xu, H.S. Chen
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Pack Cementation Processes

2013
Abstract Pack cementation is the most widely employed method of diffusion coating. This article briefly reviews pack cementation processes of aluminizing, chromizing, and siliconizing. It contains tables that list typical characteristics of pack cementation processes and commercial applications of pack cementation aluminizing, which is ...
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