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Production of ceramic nanoparticles ...

Nuechterlein, Jacob.

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Production of ceramic nanoparticles through self-propagating high-temperature synthesis (SHS) and their introduction into a metallic matrix to form metal matrix composites (MMC).

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Production of ceramic nanoparticles through self-propagating high-temperature synthesis (SHS) and their introduction into a metallic matrix to form metal matrix composites (MMC)./
作者:	Nuechterlein, Jacob.
面頁冊數:	88 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-12(E), Section: B.
Contained By:	Dissertation Abstracts International74-12B(E).
標題:	Nanoscience. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3591411
ISBN:	9781303319860

Production of ceramic nanoparticles through self-propagating high-temperature synthesis (SHS) and their introduction into a metallic matrix to form metal matrix composites (MMC).
Nuechterlein, Jacob.

Production of ceramic nanoparticles through self-propagating high-temperature synthesis (SHS) and their introduction into a metallic matrix to form metal matrix composites (MMC). - 88 p.

Source: Dissertation Abstracts International, Volume: 74-12(E), Section: B.

Thesis (Ph.D.)--Colorado School of Mines, 2013.

Self-propagating high-temperature synthesis (SHS) is a self-sustaining combustion reaction of reactant powders typically in the form of compacted pellets to form a desired product species. The reactants are ignited in one or more locations by several different techniques. After ignition the reaction travels as a wave through the pellet exothermically converting the reactants into products as it propagates. In this case the products are formed as discrete ceramic particles of TiC, Al2O3 and SiC. The goal of this research was to reduce the size of the particles formed by this technique from a diameter of 1-5&mgr;m to less than 100nm with the goal of then incorporating these nanoparticles as reinforcements in Al metal matrix composites.

ISBN: 9781303319860Subjects--Topical Terms:

587832
Nanoscience.

Production of ceramic nanoparticles through self-propagating high-temperature synthesis (SHS) and their introduction into a metallic matrix to form metal matrix composites (MMC).
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245 1 0 $a Production of ceramic nanoparticles through self-propagating high-temperature synthesis (SHS) and their introduction into a metallic matrix to form metal matrix composites (MMC).
300 $a 88 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-12(E), Section: B.
500 $a Adviser: Michael Kaufman.
502 $a Thesis (Ph.D.)--Colorado School of Mines, 2013.
520 $a Self-propagating high-temperature synthesis (SHS) is a self-sustaining combustion reaction of reactant powders typically in the form of compacted pellets to form a desired product species. The reactants are ignited in one or more locations by several different techniques. After ignition the reaction travels as a wave through the pellet exothermically converting the reactants into products as it propagates. In this case the products are formed as discrete ceramic particles of TiC, Al2O3 and SiC. The goal of this research was to reduce the size of the particles formed by this technique from a diameter of 1-5&mgr;m to less than 100nm with the goal of then incorporating these nanoparticles as reinforcements in Al metal matrix composites.
520 $a To accomplish this, many different SHS principles were studied and their associated variables were changed to reduce the combustion temperature of each reacting system. Several of these systems were investigated and discarded for a number of reasons such as: low ignition or high combustion temperatures, dangerous reaction conditions, or undesirable product densities and morphologies. The systems chosen exhibited low material costs, low combustion temperatures, and a wide range of stabilities when lowering the reaction temperature. The reacting systems pursued were based around the aluminothermic reduction of TiO2 in the presence of carbon to form TiC and Al2O 3. The combustion temperature of this reaction was reduced from 2053ºC to less than 1100ºC, which had a corresponding effect on the particle size of the products, reducing the average diameter of the particles to less than 100nm. This was accomplished by providing high heating rates, controlling the green density and adding diluents to the reaction such as Al, TiC, SiC or Al2O3. Cooling experiments were also investigated, but the cooling rate was found to have no effect on the particle size.
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