Combustion of magnesium particles I

Cassel, Hans M.; Liebman, I.

doi:10.1016/0010-2180(62)90084-6

Cited by 43 publications

(12 citation statements)

References 2 publications

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“…for titanium, from refs . and for magnesium, from refs . It is apparent that there are discrepancies between the trends for coarse and fine particles for all metals, which is likely associated with errors in measurements.…”

Section: Rates Of Heat Release For Rsmsmentioning

confidence: 98%

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Reactive Structural Materials: Preparation and Characterization

Hastings

Dreizin

2017

Adv Eng Mater

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Reactive structural materials, which can serve both as structural elements as well as a source of chemical energy released upon initiation have emerged as an important class of metal-based composites for use in various energetic systems. Such materials rely on a variety of exothermic reactions, from oxidation to formation of metal-metalloid and intermetallic phases. The rates of these reactions are as important as the energy that may be released, in order for them to occur at the time scales compatible with the requirements of applications. Therefore, chemical composition, scale at which reactive components are mixed, and the structure and morphology of materials are important and can be controlled by the method of preparation and compaction of the composite materials. Methods of preparation of the composite structures are briefly reviewed as well as methods of characterization of their mechanical and energetic properties. In addition to common thermo-analytical and static mechanical property measurements, dynamic tests of mechanical properties as well as ignition and combustion experiments are necessary to understand the fragmentation, initiation, and heat release expected for these materials when they are stimulated by an impact, shock, or rapid heating. Reaction mechanisms are studied presently for the thin layers and small samples of reactive materials initiated in carefully designed experiments. In other experiments, impact and explosive initiation are characterized for larger material compacts in the conditions imitating practical scenarios. Examples of results describing thermal, impact, and explosive initiation of some of the reactive materials are presented.

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Section: Rates Of Heat Release For Rsmsmentioning

confidence: 98%

“…Characteristic burn times of particles of different sizes for selected metal fuels reported in the literature: aluminum, boron, titanium, and magnesium …”

Section: Rates Of Heat Release For Rsmsmentioning

confidence: 99%

Reactive Structural Materials: Preparation and Characterization

Hastings

Dreizin

2017

Adv Eng Mater

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“…Рекомендуемая [2][3][4][5] энергия активации окисления бериллия при Т = 620-1220 К E = 210 Дж/моль = 50,3 ккал/моль. В разных исследованиях эта величина даётся с разбросом от 36 до 470 Дж/моль.…”

Section: образование оксидной плёнкиunclassified

Formation and Degradation of Oxide Films on Beryllium

Давыдов¹,

Kholopova²,

Kolbasov³

2010

PAST-TF

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“…One advantage of magnesium is that it is readily ignited, and thus can serve to initiate the reaction of various energetic formulations. It generates a bright optical emission [7][8][9][10][11] and typically reacts in the vapor phase forming condensed MgO smoke as the main combustion product [12][13][14][15][16]. The ease of ignition for magnesium is associated with the penetrable nature of the surface MgO film covering the metal [17].…”

Section: Introductionmentioning

confidence: 99%

Stability and Ignition of a Siloxane‐Coated Magnesium Powder

Hastings

Schoenitz

Ryan

et al. 2019

Propellants Explo Pyrotec

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Magnesium powders are used widely in reactive and energetic composite materials, such as pyrotechnic formulations, solid fuels and explosives, as a vital ignition source. However, magnesium powders are highly reactive with atmospheric oxygen and moisture, forming the inert magnesium oxide and hydroxide. These reactions limit their shelf life, decrease their potency and affects the overall stability of these materials. In order to increase their long‐term stability, protective magnesium coatings are desired. In this work, a method for coating magnesium powders using tetramethylcyclotetrasiloxane (D4H) through a vapor‐solid interface reaction is described. This reaction requires no solvents, little material, and does not produce any corrosive byproducts. Coated powders demonstrate increased stability when exposed to elevated temperatures and high humidity conditions, with no oxidation of the magnesium observable. Despite improved stability, the coatings do not negatively impact ignition temperature and dynamics for magnesium powders.

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Combustion of magnesium particles I

Cited by 43 publications

References 2 publications

Reactive Structural Materials: Preparation and Characterization

Reactive Structural Materials: Preparation and Characterization

Formation and Degradation of Oxide Films on Beryllium

Stability and Ignition of a Siloxane‐Coated Magnesium Powder

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