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พฤติกรรมการสึกหรอแบบขูดขีดของชั้นผิวแพร่โดยการ Pack Cementation บนเหล็กกล้าคาร์บอนต่ำ

2013
2, 7, วารสารวิชาการและวิจัย มทร ...
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Design model for diffusion coatings formed via pack cementation

Materials and Corrosion, 2013
Coatings improve the high temperature corrosion resistance of materials by enriching the subsurface zone with elements that form protective oxide scales, which increase the material lifetime. Interesting coatings are aluminum (Al) diffusion coatings formed in a pack cementation process e.g., on austenitic steels.
A. Naji, M. C. Galetz, M. Schütze
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Packing Density Improvement for Improving Strength of Cement Paste

Materials Science Forum, 2019
To design a mix for high-strength concrete is not easy, one of the methods is to improve the packing density of the cementitious materials. To study the effect of packing density on strength, a comprehensive research program using superfine pulverized fuel ash and silica fume was carried out. Results showed that a high superfine pulverized fuel ash and
Jian Jian Chen, Hong Niao Chen, Gu Li
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Processing of Optimized Cements and Concretes Via Particle Packing

MRS Bulletin, 1993
It has been well-recognized for many years that the particle-size distributions of the cement and the grading of the aggregates play an important role in determining the properties and characteristics of cement and concrete products. DSP (densified with small particles) type cements and concretes, to a certain extent, MDF (macro-defect-free) cements ...
D.M. Roy, B.E. Scheetz, M.R. Silsbee
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"Increasing Packing Density through Blending Cement, Fly Ash, and Silica Fume to Improve Cement Paste Rheology"

SP-242: 9th Canmet/ACI Fly Ash Conference, 2007
Concrete-polymer materials that include polymer-impregnated concrete (PIC) polymer concrete (PC) and polymer-modified concrete (PMC), have been developed within the past 50 years. PIC, which started out with great promise, has essentially disappeared from the scene. PC has been widely used for repairs, floor and bridge overlays, and precast components,
Ng, PL, Ng, IYT, Wong, HC, Kwan, AKH
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Oxidation behavior of Mo–9Si–18B alloy pack-cemented in a Si-base pack mixture

Intermetallics, 2003
Abstract Mo–9Si–18B alloy with a T 2 /Mo ss two-phase structure was pack-cemented in a Si-base pack mixture [Si:NaF:Al 2 O 3 =5:1:44 (wt.%)] and its oxidation behavior was examined. The deposited layer of as-cemented alloy consists of MoSi 2 with the C11 b structure.
Ito, K, Murakami, T, Adachi, K, Yamaguchi, M   +3 more
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Producing Surface Coatings on Silicon Nitride by Pack Cementation

2008
Pack cementation processing was used to chemically alter the surface of dense silicon nitride materials and form a coating layer. Test samples were examined by XRD, SEM, and optical microscopy to characterize the chemicaland microstructural changes in the materials after processing.
S. D. Nunn, R. A. Lowden, F. C. Montgomery   +2 more
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Thermodynamics and Kinetics of Pack Cementation Processes

1984
Pack cementation processes have received widespread application in the deposition of coatings to improve the surface oxidation and corrosion resistance of heat resistant alloys at elevated temperatures. This paper is a review of the basic thermodynamics and kinetics of such processes, with emphasis on those of interest for coating gas turbine ...
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Pack Cementation Coating of Steel for High-Temperature Applications

CORROSION 1988, 1988
Abstract The equilibrium partial pressures of gaseous species in halide- activated cementation coating packs are calculated. These results provide insight to the coating mechanism for different packs. Under special conditions, two elements can be codeposited into iron or stainless steels to form protective coatings with excellent ...
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Thermodynamics of Carbide-Fluoride Systems in Pack Cementation Deposition

1989
Thermodynamical analysis becomes an important tool in developping pack cementation processes, as will be demonstrated for the case of carbide-fluoride systems. These systems are based on powder mixtures containing at least one carbide and one fluosalt (e.g. SiC + KBF4 + …).
S. Mareels, E. Wettinck, A. P. Peteghem
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