Investigating The Effect of (NH4)2SnCl6 on the Tin Pest Process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43930768" target="_blank" >RIV/60461373:22310/24:43930768 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.37904/metal.2024.4918" target="_blank" >http://dx.doi.org/10.37904/metal.2024.4918</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2024.4918" target="_blank" >10.37904/metal.2024.4918</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigating The Effect of (NH4)2SnCl6 on the Tin Pest Process

Popis výsledku v původním jazyce

The so-called tin pest is a phase transformation of white tin (beta(Sn)) into grey tin(alfa(Sn)), where the disintegration of tin materials occurs due to different thermodynamic stability of the phases with a transition at 13.2 °C. The degradation is relatively slow until -50 °C where the maximum speed is located. Therefore, one can trace research (over 100 years old) synthetizing pink salt (NH4)2SnCl6 and use it together with alfa(Sn) particles inoculation to accelerate the tin pest process.Because (NH4)2SnCl6 was discovered in nature in 2009 in the volcanic dust of an Italian volcano, we decided to investigate its effect on tin material without the use of an inoculator, in aqueous and ethanol solution. To fully simulate the weathering conditions, we observed the samples at different temperatures.Tin in ethanol solution showed the tin pest, and this after only 5 days and at a temperature of just 4 °C. In aqueous solution, rapid degradation also occurred already at room temperature, but this was not tin pest. Based on these results, pink salt poses a serious risk, not only in the vicinity of the volcano, but also many kilometres away because of volcanic fallout and already at temperatures above zero.The samples were characterized with stereo microscope, scanning electron microscopy and Raman microscope.

Název v anglickém jazyce

Investigating The Effect of (NH4)2SnCl6 on the Tin Pest Process

Popis výsledku anglicky

The so-called tin pest is a phase transformation of white tin (beta(Sn)) into grey tin(alfa(Sn)), where the disintegration of tin materials occurs due to different thermodynamic stability of the phases with a transition at 13.2 °C. The degradation is relatively slow until -50 °C where the maximum speed is located. Therefore, one can trace research (over 100 years old) synthetizing pink salt (NH4)2SnCl6 and use it together with alfa(Sn) particles inoculation to accelerate the tin pest process.Because (NH4)2SnCl6 was discovered in nature in 2009 in the volcanic dust of an Italian volcano, we decided to investigate its effect on tin material without the use of an inoculator, in aqueous and ethanol solution. To fully simulate the weathering conditions, we observed the samples at different temperatures.Tin in ethanol solution showed the tin pest, and this after only 5 days and at a temperature of just 4 °C. In aqueous solution, rapid degradation also occurred already at room temperature, but this was not tin pest. Based on these results, pink salt poses a serious risk, not only in the vicinity of the volcano, but also many kilometres away because of volcanic fallout and already at temperatures above zero.The samples were characterized with stereo microscope, scanning electron microscopy and Raman microscope.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA22-05801S" target="_blank" >GA22-05801S: Příčiny a mechanismus degradace slitin cínu s nízkým obsahem legujících prvků</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings 33rd International Conference on Metallurgy and Materials (METAL 2024)

ISBN

978-80-88365-21-1

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

6

Strana od-do

444-449

Název nakladatele

Tanger s.r.o.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

22. 5. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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