SU634173A1

SU634173A1 - Polymeric material microhardness determining method

Info

Publication number: SU634173A1
Application number: SU772506774A
Authority: SU
Inventors: Александр Иосифович Баркан; Олег Иванович Палий; Александр Владимирович Рогачев
Original assignee: Институт Механики Металлополимерных Систем Ан Белорусской Сср
Priority date: 1977-07-15
Filing date: 1977-07-15
Publication date: 1978-11-25

Description

Иаобретеиие относитс к измерению твердости материалов, в частности к способам определени микротвердости полимерных материалов.The invention relates to the measurement of the hardness of materials, in particular, to methods for determining the microhardness of polymeric materials.

Известен способ определени микротвердости полимерных материалов, saiUMOчаюшийс в том, что индентор внедр ют под действием заданной нагрузки в испытуемый материал и регистрируют величину диагонали отпечатка ij.A known method for determining the microhardness of polymeric materials, saiUMO, is that the indenter is inserted under the action of a given load into the material under test and the value of the diagonal of the print ij is recorded.

Недостатком этого способа вл етс сложность и низка точность измерени микротвердости.The disadvantage of this method is the complexity and low accuracy of the microhardness measurement.

Известен способ определени микротвердост полимерных материалов, заключающийс в том, что иа поверхность полимерного материала нанос т индикаторный слой, вдавливают иидентор при заданной иагруаке,и о микротвердости полимерного материала суд т по величине образовавшегос отпечатка 2.A known method for determining the microhardness of polymeric materials consists in that an indicator layer is applied to the surface of a polymeric material, a tenant is pressed in at a given irradiation, and the microhardness of the polymeric material is judged by the size of the imprint 2.

Данный способ определени микротвердости полимерных материалов вл етс наибопее близким по технической сушнскThis method of determining the microhardness of polymeric materials is the closest in technical drying.

сти и достигаемому результату к изобретению .and the achieved result to the invention.

Цель изобретеии - повышение точности определени мккротвердости.The purpose of the invention is to improve the accuracy of microhardness.

Это достигаетс тем, что индикаторный слой нанос т миогократно, каждый раз измен его толшииу, индеитор вдавливают после каждого нанесени индикаторного сло , а о микротвердостн суд т по результатам нескольких вдавлвваний .This is achieved by the fact that the indicator layer is applied repeatedly, each time changing its thickness, the indexer is pressed in after each application of the indicator layer, and microhardness is judged by the results of several indentations.

Кроме того, индикаторный слой нанос т напылением и толщины индикаторных слоев выбирают в пределах от 3 дЬ 2О нм.In addition, the indicator layer is applied by spraying and the thickness of the indicator layers is chosen in the range of 3 dB 2 O nm.

Способ осуществл ют следующем образом .The method is carried out as follows.

Claims

An indicator layer with various thicknesses from 3, O to 2 O nm is deposited on the surface of the polymeric material. Different plastic properties can be used as indicator layers: metals, copper wires, their oxides, etc. With the help of a microhardness meter, the indenter is pressed in at a given time. the load in the measurement of the imprint formed on the areas: with the thickness in the applied indicator layer. According to the data obtained, the thickness of the magnitude of the imprints of the microhardness of the polymer material is judged by the zero thickness of the thickness of the autoactivity. Claims 1. The method of determining the microhardness of polymeric materials, which consists in applying a vial-release layer to the surface of a polymeric material, indents itself at a given loading and microhardness of the polymeric material is judged; in terms of the size of the imprint formed, in order to improve the accuracy of microhardness determination, the indicator layer is applied repeatedly, each time changing its thickness, the indenter is pressed in after each application of the indicator layer, and the microhardness is judged by the results of several indentations. 2. The method according to claim 1, wherein the indicator layer is applied by spraying. 3. The method according to PP.1 and 2, that is, so that the thickness of the indicator layers is chosen in the range from 3 to 20 nm. Sources of information taken into account in the examination: 1. V. Grvgorgich. Metal hardness and microhardness. M. Science, 1976, p. 119-160.

2. Khrushchov M.M. Microhardness test methods. M., Science, 1965. with. 255.