In Situ Measurement of Shrinkage During Postreaction Sintering of

) ceramics, which has receivedmuchattentionasacost-effectiveprocessduetotheuseofcheapSi powder as a raw material. Many studies on the developmentof this method have been performed in order to improve theirproperties; however, the sintering shrinkage behavior, which is avery important information to optimize the firing condition, hasnot been well clarified. In this study, we focused on the reaction-bonding technique of the Si–Y