A study on the differential thermal analysis of clays and clay minerals

P.L. Arens

Research output: Thesisinternal PhD, WU

Abstract

Differential thermal analysis (DTA) as a method of analysing properties of chemical compounds, more especially of clay minerals, developed rapidly, but lack of quantitative interpretations left many problems to be studied. A historical review was presented, showing the purpose of the study. Equipment was descibed in detail, with special attention to sample holders and calibration techniques.

The influences were discussed of rate of temperature rise, of type and place of the thermocouples, of packing and type of inert materials and clays, and of the adsorbed cations. Usually the effects were demonstrated with experimental curves. The theory of heat transfer was worked out and applied to the DTA. Attention was given to the problems of peak shifting. Measurements obtained with different equipment were compared and conclusions were drawn on corrections that could be made.

The author stressed the significance of the DTA method, especially in pedology. Two appendices give the solution of the differential equations used and the standardization rules for DTA equipment.

Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
Supervisors/Advisors
  • Schuffelen, A.C., Promotor, External person
Award date29 Jun 1951
Place of Publication's-Gravenhage
Publisher
Publication statusPublished - 1951
Externally publishedYes

Fingerprint

Clay minerals
Differential thermal analysis
Chemical compounds
Thermocouples
Standardization
Cations
Differential equations
Calibration
Heat transfer
clay
Temperature

Keywords

  • kaolinite
  • clay minerals
  • kaolin
  • minerals
  • properties
  • determination
  • soil temperature
  • measurement
  • soil

Cite this

Arens, P. L. (1951). A study on the differential thermal analysis of clays and clay minerals. 's-Gravenhage: Excelsiors.
Arens, P.L.. / A study on the differential thermal analysis of clays and clay minerals. 's-Gravenhage : Excelsiors, 1951. 132 p.
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title = "A study on the differential thermal analysis of clays and clay minerals",
abstract = "Differential thermal analysis (DTA) as a method of analysing properties of chemical compounds, more especially of clay minerals, developed rapidly, but lack of quantitative interpretations left many problems to be studied. A historical review was presented, showing the purpose of the study. Equipment was descibed in detail, with special attention to sample holders and calibration techniques.The influences were discussed of rate of temperature rise, of type and place of the thermocouples, of packing and type of inert materials and clays, and of the adsorbed cations. Usually the effects were demonstrated with experimental curves. The theory of heat transfer was worked out and applied to the DTA. Attention was given to the problems of peak shifting. Measurements obtained with different equipment were compared and conclusions were drawn on corrections that could be made.The author stressed the significance of the DTA method, especially in pedology. Two appendices give the solution of the differential equations used and the standardization rules for DTA equipment.",
keywords = "kaoliniet, kleimineralen, kaolien, mineralen, eigenschappen, bepaling, bodemtemperatuur, meting, bodem, kaolinite, clay minerals, kaolin, minerals, properties, determination, soil temperature, measurement, soil",
author = "P.L. Arens",
note = "WU thesis 164 Proefschrift Wageningen",
year = "1951",
language = "English",
publisher = "Excelsiors",
school = "Wageningen University",

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Arens, PL 1951, 'A study on the differential thermal analysis of clays and clay minerals', Doctor of Philosophy, Wageningen University, 's-Gravenhage.

A study on the differential thermal analysis of clays and clay minerals. / Arens, P.L.

's-Gravenhage : Excelsiors, 1951. 132 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - A study on the differential thermal analysis of clays and clay minerals

AU - Arens, P.L.

N1 - WU thesis 164 Proefschrift Wageningen

PY - 1951

Y1 - 1951

N2 - Differential thermal analysis (DTA) as a method of analysing properties of chemical compounds, more especially of clay minerals, developed rapidly, but lack of quantitative interpretations left many problems to be studied. A historical review was presented, showing the purpose of the study. Equipment was descibed in detail, with special attention to sample holders and calibration techniques.The influences were discussed of rate of temperature rise, of type and place of the thermocouples, of packing and type of inert materials and clays, and of the adsorbed cations. Usually the effects were demonstrated with experimental curves. The theory of heat transfer was worked out and applied to the DTA. Attention was given to the problems of peak shifting. Measurements obtained with different equipment were compared and conclusions were drawn on corrections that could be made.The author stressed the significance of the DTA method, especially in pedology. Two appendices give the solution of the differential equations used and the standardization rules for DTA equipment.

AB - Differential thermal analysis (DTA) as a method of analysing properties of chemical compounds, more especially of clay minerals, developed rapidly, but lack of quantitative interpretations left many problems to be studied. A historical review was presented, showing the purpose of the study. Equipment was descibed in detail, with special attention to sample holders and calibration techniques.The influences were discussed of rate of temperature rise, of type and place of the thermocouples, of packing and type of inert materials and clays, and of the adsorbed cations. Usually the effects were demonstrated with experimental curves. The theory of heat transfer was worked out and applied to the DTA. Attention was given to the problems of peak shifting. Measurements obtained with different equipment were compared and conclusions were drawn on corrections that could be made.The author stressed the significance of the DTA method, especially in pedology. Two appendices give the solution of the differential equations used and the standardization rules for DTA equipment.

KW - kaoliniet

KW - kleimineralen

KW - kaolien

KW - mineralen

KW - eigenschappen

KW - bepaling

KW - bodemtemperatuur

KW - meting

KW - bodem

KW - kaolinite

KW - clay minerals

KW - kaolin

KW - minerals

KW - properties

KW - determination

KW - soil temperature

KW - measurement

KW - soil

M3 - internal PhD, WU

PB - Excelsiors

CY - 's-Gravenhage

ER -

Arens PL. A study on the differential thermal analysis of clays and clay minerals. 's-Gravenhage: Excelsiors, 1951. 132 p.