The Ignition Behavior of a Ternary Mg–Sr–Ca Alloy
Source abstract
Abstract
In this work, a Mg–Sr–Ca alloy is evaluated for ignition resistance. The simultaneous use of Sr and Ca results in an ignition temperature increase of ≈110 °C compared to pure Mg. This is attributed to the formation of a compact oxide scale due to the modification of the native MgO scale. A new parameter, the effective Pilling–Bedworth ratio (EPBR), which is the molar volume ratio between the oxide formed and the substrate alloy, is developed. The EPBR of the composite oxide forming on the Mg–Ca–Sr alloy is found to be greater than 1, resulting in a protective scale due to the increased volume occupied by the oxide at the surface. In the solid state, the oxide scale is rich in CaO, with the SrO contribution being minimal. In the liquid state, SrO contribution increases.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Energetic Materials and Combustion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mining and Materials Engineering McGill University 3610 University Montreal Quebec H3A 2B2 Canada
Funding
Consejo Nacional de Ciencia y Tecnología · Natural Sciences and Engineering Research Council of Canada
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