Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**

This paper demonstrates the effects of multilayer coatings on the thermal conductivity of tool specimens. The experiments were conducted using copper specimens and four tool specimens with different coatings (uncoated, TiN, TiN/TiCN, and TiN/Al2O3/TiCN). An electrical furnace technique was used with...

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Main Authors: Challab Farhan Kamil, Jawad Salah Kareem, Tawfiq Maan Aabid
Format: Article
Language:English
Published: De Gruyter 2021-12-01
Series:Journal of the Mechanical Behavior of Materials
Subjects:
Online Access:https://doi.org/10.1515/jmbm-2021-0031
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author Challab Farhan Kamil
Jawad Salah Kareem
Tawfiq Maan Aabid
author_facet Challab Farhan Kamil
Jawad Salah Kareem
Tawfiq Maan Aabid
author_sort Challab Farhan Kamil
collection DOAJ
description This paper demonstrates the effects of multilayer coatings on the thermal conductivity of tool specimens. The experiments were conducted using copper specimens and four tool specimens with different coatings (uncoated, TiN, TiN/TiCN, and TiN/Al2O3/TiCN). An electrical furnace technique was used with the specimens isolated from their surroundings and temperatures measured at the contact surfaces. The specimens are joined securely, with a thermal insulator (glass wool) placed around them so that the heat flow is in the axial direction only. One surface of the copper specimen faces the heat source, and the opposite end of the tool specimen is exposed to room temperature. The experimental results displayed variations in the temperature distribution due to the effect of the coatings, and thermal conductivities were measured at temperatures ranging from 100°C to 300°C. The results indicated the optimum coating for tools (lowest thermal conductivity) of the four types is TiN/Al2O3/TiCN.
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spelling doaj.art-c881ea42c5134a58adcec336daa47ee72022-12-21T23:56:04ZengDe GruyterJournal of the Mechanical Behavior of Materials0334-89382191-02432021-12-0130128529110.1515/jmbm-2021-0031Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**Challab Farhan Kamil0Jawad Salah Kareem1Tawfiq Maan Aabid2Production Engineering and Metallurgy Department, University of Technology, Baghdad, IraqProduction Engineering and Metallurgy Department, University of Technology, Baghdad, IraqProduction Engineering and Metallurgy Department, University of Technology, Baghdad, IraqThis paper demonstrates the effects of multilayer coatings on the thermal conductivity of tool specimens. The experiments were conducted using copper specimens and four tool specimens with different coatings (uncoated, TiN, TiN/TiCN, and TiN/Al2O3/TiCN). An electrical furnace technique was used with the specimens isolated from their surroundings and temperatures measured at the contact surfaces. The specimens are joined securely, with a thermal insulator (glass wool) placed around them so that the heat flow is in the axial direction only. One surface of the copper specimen faces the heat source, and the opposite end of the tool specimen is exposed to room temperature. The experimental results displayed variations in the temperature distribution due to the effect of the coatings, and thermal conductivities were measured at temperatures ranging from 100°C to 300°C. The results indicated the optimum coating for tools (lowest thermal conductivity) of the four types is TiN/Al2O3/TiCN.https://doi.org/10.1515/jmbm-2021-0031temperature measurementthermal conductivitymultilayer coating tools
spellingShingle Challab Farhan Kamil
Jawad Salah Kareem
Tawfiq Maan Aabid
Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**
Journal of the Mechanical Behavior of Materials
temperature measurement
thermal conductivity
multilayer coating tools
title Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**
title_full Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**
title_fullStr Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**
title_full_unstemmed Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**
title_short Multilayer coating effects on the thermal conductivity of tools using an electric furnace technique**
title_sort multilayer coating effects on the thermal conductivity of tools using an electric furnace technique
topic temperature measurement
thermal conductivity
multilayer coating tools
url https://doi.org/10.1515/jmbm-2021-0031
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AT jawadsalahkareem multilayercoatingeffectsonthethermalconductivityoftoolsusinganelectricfurnacetechnique
AT tawfiqmaanaabid multilayercoatingeffectsonthethermalconductivityoftoolsusinganelectricfurnacetechnique