Also found in: Dictionary.


The measurement of changes in the volume of a liquid or dimensions of a solid which occur in phenomena such as allotropic transformations, thermal expansion, compression, creep, or magnetostriction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a branch of physics that studies the dependence of the dimensional changes of bodies on external conditions, such as temperature, pressure, electric and magnetic fields, and ionizing radiation. Basically, dilatometry deals with the thermal expansion of bodies and its various anomalies (occurring, for example, during phase transitions). Instruments used in dilatometry are called dilatometers. Dilatometric methods are widely used in physics to study the properties of substances as well as in the study of materials.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Therefore, the influence of temperature on the stability and on the linear CTE of these composites was evaluated using TGA, DSC, and dilatometry.
Evaluation of the systems also included conducting dilatometry and differential scanning calorimetry to determine the temperature dependent density and specific heat capacity.
In [62] techniques as impedance spectroscopy (IS)/four-point dc conductivity, thermogravimetric analysis/coulometric titration, dilatometry, hightemperature Kelvin probe and Kelvin probe force microscopy, scanning tunneling microscopy (STM)/spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy, secondary ion mass spectroscopy(SIMS), and X-ray and neutron diffraction (XRD) are mentioned to determine different characteristics of point defects.
Thermal expansion coefficient value (a) of glass waste was determined by dilatometry measurements.
The work furnishes a quantitative description of the volume changes of compacts on the basis of a direct determination of the stages of liquid phase sintering using dilatometry, microstructural studies and experimental verification of the analytical calculations.
Dilatometry test result reported by Sanjayan et al.
Results and comparison of phase transformation temperatures (R&D Team, 2003) (Choquet et al, 1985) (Steven et al, 1956) (Andrews, 1965) (Krauss, 1990) [T.sub.t] Dilatometry JMatPro [[degrees]C] [[degrees]C] [Ar.sub.3] 813 -- [Ar.sub.3] 844 822 [B.sub.s] -- 504 [M.sub.s] 305 299 [M.sub.s] 305 299 [T.sub.t] Model [[degrees]C] [Ar.sub.3] 750[degrees]C--Nippon St.
Volumetric contraction upon polymerization or polymerization shrinkage (PS) of the composites was measured by a computer-controlled mercury dilatometry (Fig.
soli d fat content: a comparison of dilatometry and pulsed nuclear magnetic resonance for solids in hydrogenated soybean oil; Elasticity of fractal aggregate networks: mechanical arguments; Development and use of a novel technique to measure exchange between lipid crystals and oils; Application of crystallisation technique for the lipase-catalysed solid-phase synthesis of sugar fatty acid monoesters; Relating bulk-fat properties to emulsified systems: characterisation of emulsion destabilisation by crystallising fats; Crystallisation in emulsion: application to thermal and structural behaviour of milk fat; Emulsion partial coalescence and structure formation in dairy systems; Solidification processes in chocolate confectionery manufacture; Polymorphism and texture of fat
Cryogenic dilatometry is also included in thermal analysis capabilities.
Volume measurements, or dilatometry, is frequently used to determine a polymer's Tg (ref.