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A discussion of the paper “quantitative backscattered electron analysis of cement paste” by H. Zhao and D. Darwin

✍ Scribed by David Bonen

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
308 KB
Volume
23
Category
Article
ISSN
0008-8846

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A comment on the reply to the discussion
A comment on the reply to the discussion of the paper “quantitative backscattered electron analysis of cement paste” by H. Zhao and D. Darwin
✍ David Bonen 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 157 KB

The writer thanks Zhao and Darwin for their thoughtful reply, shedding more light on the complexity of backscatter image processing. The writer takes this opportunity to comment on their reply and addresses some fundamental issues.

A reply to a discussion by D. Bonen of t
A reply to a discussion by D. Bonen of the paper “quantitative backscattered electron analysis of cement paste”
✍ Hong Zhao; David Darwin 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 276 KB

The authors appreciate Bonen's discussion. He has raised a number of useful points that should be addressed. At the outset, it appears that Bonen has concluded that the preset gray levels used to identify phases within cement paste were selected based on "absolute" backscatter coefficients. This wa

Quantitative backscattered electron anal
Quantitative backscattered electron analysis of cement paste
✍ Hong Zhao; David Darwin 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 884 KB

Procedures are developed to obtain reproducible quantitative data from polished specimens of cement paste using automated backscattered electron imaging. Signal production, contrast, image resolution, and imaging techniques are discussed. Preparation of a silicon-magnesium standard is described. Typ

A discussion of the paper “application o
A discussion of the paper “application of the scanning electron microscope to the study of the initial hydration of Portland cement paste” by D.M.R. Orr
✍ S.L. Sarkar 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 32 KB

In the above paper the author has emphasized the need for conductive coating of specimens by Au sputtering. It is worth noting that most modern electron-optical instruments, particularly SEMs are equipped with energy-dispersive spectrometers for microanalysis of specimens. Au sputtering of cementiti