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Guide to Rheological Nomenclature: Measurements in Ceramic Particulate Systems.

pdf icon Guide to Rheological Nomenclature: Measurements in Ceramic Particulate Systems. (165 K)
Hackley, V. A.; Ferraris, C. F.

NIST SP 946; 35 p. January 2001.

Available from:

Government Printing Office, Washington, DC 20401-0003.
Telephone: 202-512-1800.


rheology; ceramic particulate systems; viscosity; concretes; test methods


Measurements and standards play an integral role in the manufacture and utilization of ceramic powders, components, coatings and composites. They enhance reliability by providing a basis for quantifying and comparing material properties during each phase of the manufacturing process, from raw materials to the finished product. Equally important is the establishment of a uniform and widely accepted nomenclature to permit the efficient exchange of scientific and technical information, and to provide a sound basis on which to standardize measurement methods and data reporting practices. This document represents the second in a series of guides intended to serve the dual purpose of helping to establish a uniform system of terminology, geared towards the ceramics community, while also providing a convenient resource for the practicing engineer or scientist. This document provides definitions of terms and expressions relating to the measurement of rheological properties in liquid-based ceramic particulate systems (i.e., suspensions, pastes and gels). The term cerumic is here broadly defined as a non-metallic inorganic material. So, although the focus is on ceramic applications, the definitions are largely generic in nature, and should be compatible with many non-ceramic applications. Equations have been used sparingly, and only where necessary for clarity or where they are integral to the subject at hand. Besides having a glossary of basic terms, the guide is organized so that the reader can more readily locate related terms associated with specific subject areas (e.g., concrete applications or oscillatory measurements). Defined terms are indicated in bold face type. Where alternative or equivalent terms exist, they are shown in brackets adjacent to the preferred term. Terms used in definitions, and which are defined separately in the guide, are indicated in italic at their first appearance in that paragraph or section. The only exception to this rule is the term viscosity, which is not italicized when it appears by itself, due to its ubiquity throughout the text. Furthermore, an alphabetized index to the defined terms is provided. Descriptions of instrumentation provided in this guide are generic in nature, and are presented solely for the purpose of identifying key measurement techniques and their associated nomenclature.