MULTINUCLEAR MAGIC-ANGLE SAMPLE-SPINNING NUCLEAR MAGNETIC RESONANCE SPECTROSCOPIC STUDIES OF CRYSTALLINE AND AMORPHOUS CERAMIC MATERIALS.

Nuclear magnetic resonance (NMR) spectroscopy using magic-angle sample-spinning (MASS) techniques is a powerful tool for determining the local structural environment of a wide variety of elements in both crystalline and amorphous materials. It is useful for determining the phases present in a sample and the structure (including order/disorder) of such phases and for following the course of reactions at the atomic level. Applications of the MASS NMR method to ceramic materials are discussed. Some of the published data for materials of ceramic interest are reviewed. Nuclides discussed include **1**1B, **1**5N, **2**7Al, **2**9Si, and **3**1P.