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Joining of Carbon‐Carbon Composites for Thermonuclear Fusion Applications
Author(s) -
Salvo Milena,
Lemoine Patrick,
Ferraris Monica,
Montorsi Margherita,
Merola Mario
Publication year - 1997
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1997.tb02811.x
Subject(s) - materials science , composite number , composite material , thermonuclear fusion , intermetallic , carbon fibers , silicon , fusion power , scanning electron microscope , shear strength (soil) , aluminium , metallurgy , alloy , plasma , physics , environmental science , quantum mechanics , soil science , soil water
Carbon‐fiber‐reinforced carbon (CfC) composites have been joined by using different joining agents: metals (silicon, aluminum, and titanium), an intermetallic compound (magnesium silicide, Mg 2 Si), and glasses (borosilicates and zinc borates). These joining agents have been chosen by considering their possible use in a thermonuclear fusion reactor, as suggested by their low‐activation properties, reasonably high working temperature, industrial feasibility, and potential scale‐up of the joined carboncarbon structures using pressureless‐processing techniques. Each joined structure (CfC composite–joining material‐CfC composite) has been first morphologically characterized by scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and X‐ray diffractometry. Then, single‐lap shear tests have been performed on the most‐promising joined structures, i.e., silicon‐ and aluminum‐joined CfC‐composite samples, which have shown an average shear strength of 22 and 10 MPa, respectively.