VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA

An analysis is carried out of the main sources of methodological errors of the magnetic rotary viscometer. The analysis allowed to improve design and to eliminate critical modes of the research. Theoretical evaluations of the systematic error of the device showed that the value of the relative measu...

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Autores principales:	A.N. Bolotov, O.O. Novikova, V.V. Meshkov
Formato:	article
Lenguaje:	RU
Publicado:	Tver State University 2021
Materias:	magnetic nanofluid rheology viscometer shear stress shear rate Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/4f70516b2aa14bc996143d63c492efb5
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spelling	oai:doaj.org-article:4f70516b2aa14bc996143d63c492efb52021-12-03T08:31:54ZVISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA10.26456/pcascnn/2021.13.0562226-44422658-4360https://doaj.org/article/4f70516b2aa14bc996143d63c492efb52021-12-01T00:00:00Zhttps://physchemaspects.ru/2021/doi-10-26456-pcascnn-2021-13-056/?lang=enhttps://doaj.org/toc/2226-4442https://doaj.org/toc/2658-4360An analysis is carried out of the main sources of methodological errors of the magnetic rotary viscometer. The analysis allowed to improve design and to eliminate critical modes of the research. Theoretical evaluations of the systematic error of the device showed that the value of the relative measurement error can be brought to a value of less than 1%. The greatest contribution to the systematic error of the device is made by the instability of the temperature regime of the nanofluid under study and by the inaccuracy of determining the height of the liquid layer in contact with the measuring cylinder. The measurement of the viscosity of the reference liquids on the magnetic viscometer showed that experimental values are slightly, by about 0.9% overestimated. Calibration of the device on various reference liquids allowed reducing the total measurement error down to tenths of a percent. The magnetic rotary viscometer can be used in non-standard scientific studies of the structure and rheological characteristics of nanofluids, for operational control of the processes of synthesis of magnetic liquids and certification of magnetic nanofluids intended for technical use.A.N. BolotovO.O. NovikovaV.V. MeshkovTver State Universityarticlemagnetic nanofluidrheologyviscometershear stressshear ratePhysical and theoretical chemistryQD450-801RUФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, Iss 13, Pp 56-64 (2021)
institution	DOAJ
collection	DOAJ
language	RU
topic	magnetic nanofluid rheology viscometer shear stress shear rate Physical and theoretical chemistry QD450-801
spellingShingle	magnetic nanofluid rheology viscometer shear stress shear rate Physical and theoretical chemistry QD450-801 A.N. Bolotov O.O. Novikova V.V. Meshkov VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA
description	An analysis is carried out of the main sources of methodological errors of the magnetic rotary viscometer. The analysis allowed to improve design and to eliminate critical modes of the research. Theoretical evaluations of the systematic error of the device showed that the value of the relative measurement error can be brought to a value of less than 1%. The greatest contribution to the systematic error of the device is made by the instability of the temperature regime of the nanofluid under study and by the inaccuracy of determining the height of the liquid layer in contact with the measuring cylinder. The measurement of the viscosity of the reference liquids on the magnetic viscometer showed that experimental values are slightly, by about 0.9% overestimated. Calibration of the device on various reference liquids allowed reducing the total measurement error down to tenths of a percent. The magnetic rotary viscometer can be used in non-standard scientific studies of the structure and rheological characteristics of nanofluids, for operational control of the processes of synthesis of magnetic liquids and certification of magnetic nanofluids intended for technical use.
format	article
author	A.N. Bolotov O.O. Novikova V.V. Meshkov
author_facet	A.N. Bolotov O.O. Novikova V.V. Meshkov
author_sort	A.N. Bolotov
title	VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA
title_short	VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA
title_full	VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA
title_fullStr	VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA
title_full_unstemmed	VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA
title_sort	viscometry of nanodisperse magnetic liquids and lubricating oils. 2. metrological analysis of a device for rheological studies of magnetic nanodisperse liquid media
publisher	Tver State University
publishDate	2021
url	https://doaj.org/article/4f70516b2aa14bc996143d63c492efb5
work_keys_str_mv	AT anbolotov viscometryofnanodispersemagneticliquidsandlubricatingoils2metrologicalanalysisofadeviceforrheologicalstudiesofmagneticnanodisperseliquidmedia AT oonovikova viscometryofnanodispersemagneticliquidsandlubricatingoils2metrologicalanalysisofadeviceforrheologicalstudiesofmagneticnanodisperseliquidmedia AT vvmeshkov viscometryofnanodispersemagneticliquidsandlubricatingoils2metrologicalanalysisofadeviceforrheologicalstudiesofmagneticnanodisperseliquidmedia
_version_	1718373388394692608

VISCOMETRY OF NANODISPERSE MAGNETIC LIQUIDS AND LUBRICATING OILS. 2. METROLOGICAL ANALYSIS OF A DEVICE FOR RHEOLOGICAL STUDIES OF MAGNETIC NANODISPERSE LIQUID MEDIA

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