Metal fuel with combustion pressurization effect and application and preparation method thereof

A metal fuel and effect technology, applied in the direction of fuel, waste fuel, solid fuel, etc., can solve the problem of reducing the energy level of propellant, and achieve the effect of reducing solid block residue, inhibiting agglomeration, and increasing gas production.

Pending Publication Date: 2021-01-26
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the combustion enthalpy of metal fuels is a key factor affecting the specific impulse of prope...

Method used

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  • Metal fuel with combustion pressurization effect and application and preparation method thereof
  • Metal fuel with combustion pressurization effect and application and preparation method thereof
  • Metal fuel with combustion pressurization effect and application and preparation method thereof

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0029] The invention provides a metal fuel with a combustion supercharging effect, and the metal fuel comprises: a metal matrix and an additive, wherein the additive is molybdenum and / or tungsten, or the additive is a fluorine-containing polymer.

[0030] The material of the metal matrix is ​​preferably aluminum.

[0031] When the additive is molybdenum, the weight percentage of the molybdenum ...

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Abstract

The invention belongs to the related technical field of metal fuels, and discloses a metal fuel with a combustion pressurization effect, and application and a preparation method thereof. The metal fuel comprises a metal matrix and an additive, wherein the additive is molybdenum and/or tungsten, or the additive is a fluorine-containing polymer. Compared with a common fuel, the metal fuel with the combustion pressurization effect in the invention can generate low-boiling-point extremely-volatile substances during oxidation or combustion under the condition that a volume combustion enthalpy is not reduced, extra pressurization except pressure change caused by heat in a combustion cavity is achieved, the phenomenon of agglomeration is greatly inhibited, and the specific impulse of a propellantis improved.

Description

technical field [0001] The invention belongs to the technical field related to metal fuels, and more specifically relates to a metal fuel with combustion supercharging effect and its application and preparation method. Background technique [0002] Metal fuels are used as additives in solid propellants due to their high combustion enthalpy, which can significantly increase the energy density of the propellant, improve its combustion behavior, and enhance the combustion stability of the engine. The traditional metal fuel is simple aluminum powder. As a metal fuel, aluminum powder can not only significantly increase the energy density of the propellant, but also the combustion product Al 2 o 3 It can suppress the occurrence of oscillating combustion and greatly improve the combustion stability of rocket engines. However, the loss of two-phase flow caused by a large amount of agglomeration of condensed phase combustion products seriously reduces the combustion efficiency of t...

Claims

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Application Information

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IPC IPC(8): C10L5/40C10L9/10C22C1/02C22C1/03C22C21/00
CPCC10L5/40C10L9/10C10L2230/22C22C1/026C22C1/03C22C21/00Y02E50/30
Inventor 蔡水洲夏滨
Owner HUAZHONG UNIV OF SCI & TECH
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