A review is given on the status of R&D of ceramics for fusion reactor appli
cations. Emphasis is placed on the engineering design activity of fusion re
actor, the International Thermonuclear Experimental Reactor, Engineering De
sign Activities (ITER-EDA) as well as related research of electrical, diele
ctric and mechanical properties, and fundamental aspects of defects. The pa
per is based mainly on the presentations and discussion, including a keynot
e lecture and several short presentations by invited panelists, at the disc
ussion session of 'Ceramic Insulators for Fusion Energy Applications' at IC
FRM-8, on 30th October 1997 in Sendai, Japan. This report illustrates how t
he ITER-EDA and other related international activities have functioned not
only to coordinate, but also to promote international collaborations and to
mobilize the limited research resources effectively. A database which is n
ecessary for reliable design of diagnostic components in ITER is included i
n the review. (C) 1999 Published by Elsevier Science B.V. All rights reserv
ed.