Stability of cobalt?carbon high temperature fixed points doped with iron and platinum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F15%3A%230001159" target="_blank" >RIV/00177016:_____/15:#0001159 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/article/10.1088/0026-1394/52/2/353/meta" target="_blank" >http://iopscience.iop.org/article/10.1088/0026-1394/52/2/353/meta</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0026-1394/52/2/353" target="_blank" >10.1088/0026-1394/52/2/353</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stability of cobalt?carbon high temperature fixed points doped with iron and platinum

Popis výsledku v původním jazyce

High temperature fixed points (HTFPs) are stable and repeatable and make comparison of temperature scales possible at a level of uncertainty not previously possible. However, they potentially lack objectivity if the fixed-point temperature is known. FiveHTFPs were constructed, one pure Co?C, two Co?C doped with Fe and two Co?C doped with Pt of differing concentrations. The candidate dopants were identified through thermochemical modelling as likely to give maximum temperature shift with minimum increase in melting range. The temperature differences of the doped systems from the pure system were determined and it was found that the addition of Fe depressed the melting temperature and the addition of Pt elevated the melting temperature, qualitatively inline with the thermochemical modelling. The higher concentration doped HTFPs were then aged for approximately 100?h with continuous melting?freezing cycles and the difference to the undoped Co?C HTFP remeasured. These differences were fo

Název v anglickém jazyce

Stability of cobalt?carbon high temperature fixed points doped with iron and platinum

Popis výsledku anglicky

High temperature fixed points (HTFPs) are stable and repeatable and make comparison of temperature scales possible at a level of uncertainty not previously possible. However, they potentially lack objectivity if the fixed-point temperature is known. FiveHTFPs were constructed, one pure Co?C, two Co?C doped with Fe and two Co?C doped with Pt of differing concentrations. The candidate dopants were identified through thermochemical modelling as likely to give maximum temperature shift with minimum increase in melting range. The temperature differences of the doped systems from the pure system were determined and it was found that the addition of Fe depressed the melting temperature and the addition of Pt elevated the melting temperature, qualitatively inline with the thermochemical modelling. The higher concentration doped HTFPs were then aged for approximately 100?h with continuous melting?freezing cycles and the difference to the undoped Co?C HTFP remeasured. These differences were fo

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

<a href="/cs/project/7AX12096" target="_blank" >7AX12096: Metrologie pro vysoké teploty v průmyslových aplikacích (>1000 °C)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Metrologia

ISSN

0026-1394

e-ISSN

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Svazek periodika

52

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

353-359

Kód UT WoS článku

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EID výsledku v databázi Scopus

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