MEASUREMENT AND INVESTIGATION OF EFFECTS OF COAL TAR PITCH FRACTIONS IN NUCLEAR GRAPHITE PROPERTIES

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FATEMI K.; FATOUREHCHIAN S.; AHARI HASHEMI F.; AHMADI S.H.

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Journal: JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY Year:2003 | Volume:- | Issue:28 Page(s): 0-0

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Title

MEASUREMENT AND INVESTIGATION OF EFFECTS OF COAL TAR PITCH FRACTIONS IN NUCLEAR GRAPHITE PROPERTIES

Author(s)

FATEMI K. | FATOUREHCHIAN S. | AHARI HASHEMI F. | AHMADI S.H. | Issue Writer Certificate

Keywords

COAL TAR PITCHQ4

PETROLEUM COKEQ4

NUCLEAR GRAPHITEQ4

CARBONIZATIONQ4

NUCLEAR INDUSTRYQ4

Abstract

COAL TAR PITCH has a complex chemical structure. Determination of α; , β ,y fractions, is one of the methods to get information about its properties. In graphite fabrication it plays a role as a binder for coke particles. During the thermal treatment it carbonizes and changes to a secondary coke. This has considerable affects on the graphite properties. In this paper, determination of α , β, y and α1 fraction in three different types of pitches have been carried out. Graphite specimens have been fabricated by using these pitches and anisotropy coke in laboratory scale. The graphite properties have been compared with the nuclear grade graphite prototype. The comparison of the results showed that the density and compression strength are appreciable while the anisotropy factor of properties is about one. The linear thermal expansion in graphite from Iranian pitch had a better result, where it stands in the nuclear range of usage. As a result, our studies showed that the graphite properties are affected by properties of pitch fractions, where it can be used as a proper sample for the graphite fabrication

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APA: Copy

FATEMI, K., FATOUREHCHIAN, S., AHARI HASHEMI, F., & AHMADI, S.H.. (2003). MEASUREMENT AND INVESTIGATION OF EFFECTS OF COAL TAR PITCH FRACTIONS IN NUCLEAR GRAPHITE PROPERTIES. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, -(28), 0-0. SID. https://sid.ir/paper/397962/en

Vancouver: Copy

FATEMI K., FATOUREHCHIAN S., AHARI HASHEMI F., AHMADI S.H.. MEASUREMENT AND INVESTIGATION OF EFFECTS OF COAL TAR PITCH FRACTIONS IN NUCLEAR GRAPHITE PROPERTIES. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY[Internet]. 2003;-(28):0-0. Available from: https://sid.ir/paper/397962/en

IEEE: Copy

K. FATEMI, S. FATOUREHCHIAN, F. AHARI HASHEMI, and S.H. AHMADI, “MEASUREMENT AND INVESTIGATION OF EFFECTS OF COAL TAR PITCH FRACTIONS IN NUCLEAR GRAPHITE PROPERTIES,” JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. -, no. 28, pp. 0–0, 2003, [Online]. Available: https://sid.ir/paper/397962/en

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