FABRICATION OF NOVEL INORGANIC MATERIALS AND EVALUATION OF THE HIGHLY RAPID PROCESSING BY HIGHLY EXOTHERMIC AND QUICK REACTION OF COMBUSTION SYNTHESIS

新型无机材料的制备及燃烧合成的高放热和快速反应的高速加工评价

• 批准号: 09450249
• 负责人: OHYANAGI Manshi
• 金额: $ 9.22万
• 依托单位: FACULTY OF SCIENCE AND TECHNOLOGY, RYUKOKU
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450249/
• 关键词: COMBUSTION SYNTHESIS; CERAMICS; INTERMETALLICS; COMPOSITE; DYNAMIC COMPACTION; NON-EQUILIBRIUM

SELF-PROPAGATING HIGH TEMPERATURE SYNTHESIS (SHS) process in which at least one of the reactants is a solid, so-called combustion synthesis, has been gradually received attention from materials scientists. The products of these "solid flames" are technologically important materials such as structural ceramics with high melting temperature, intermetallics and the composites. Solid combustion reaction are generally accompanied by the release of a large amount of heat. In reactions that are sufficiently exothermic, the heat liberated is adequate to sustain the reactions by the rapid propagation of the combustion front without further addition of energy. The process are characterized by a high generated temperature (e.g., 2000 to 4000K), a fast-moving combustion wave front (e.g., 0.1 to 25 cm/sec), and extremely high heating (e.g., 10ィイD14ィエD1 to 10ィイD16ィエD1 K/sec) and cooling rates. The advantages of SHS process include high purity of products, low energy and short-time requirements, and … More relative simplicity of the process. SHS products are generally powdery of porous. But the highly dense form can be also fabricated using a combination technique of this process and an external pressure such as hot press, hot isostatic press (HIP), pseudo-HIP (P-HIP), explosive consolidation, and high-velocity forging. The objective of this research is to understand physico-chemically an effect of quick heat generating and subsequent quenching on the products, and to control the relaxation of non-equilibrium state of materials during the SHS process, and to synthesize novel new materials by this process. This research is divided to three portions. First is to make clear the formation mechanism of materials through the rapid heating and cooling by the dynamical analysis of the process. Second is to synthesize the covalent-bonded material containing only light elements and the materials including some bonding types in themselves. Third is to suppress the relaxation of non-equilibrium state of the materials, such as a graphitization of diamond, by applying the high non-equilibrium thermal process. For three years to perform this project, we could understand the physico-chemically the SHS process and synthesize several novel materials by the process. Less

自蔓延高温合成(SHS)过程中，至少有一个反应物是固体，即所谓的燃烧合成，已逐渐受到材料科学家的关注。这些“固体火焰”的产物是具有重要技术价值的材料，如高温结构陶瓷、金属间化合物和复合材料。固体燃烧反应一般伴随着大量热量的释放。在放热充分的反应中，释放的热量足以通过燃烧前沿的快速传播来维持反应，而不需要进一步增加能量。该过程的特征是产生高温度(例如，2000至4000K)、快速移动的燃烧波前沿(例如，0.1至25厘米/秒)以及极高的加热(例如，10ィイD14ィエD1至10ィイD16ィエD1K/秒)和冷却速率。自蔓延高温合成工艺的优点是产品纯度高、能耗低、反应时间短、…这一过程相对简单。SHS产品一般呈粉末状多孔性。但也可以使用该工艺和外部压力的组合技术来制造高密度形式，例如热压、热等静压(HIP)、伪HIP(P-HIP)、爆炸固结和高速锻造。本研究的目的是了解快速生热和随后的淬火对产物的物理化学影响，控制SHS过程中材料的非平衡状态的松弛，并通过该过程合成新材料。本研究分为三个部分。一是通过对快速加热和快速冷却过程的动力学分析，弄清材料的形成机理。二是合成只含轻元素的共价键材料和本身含有某些键类型的材料。三是采用高非平衡态的热处理工艺，抑制材料的非平衡态松弛，如金刚石的石墨化。在三年的时间里，我们可以从物理化学的角度了解自蔓延高温合成过程，并通过该过程合成几种新型材料。较少

项目成果

M.Ohyanagi, N.Balandina, K.Shirai, M.Koizumi, Z.A.Munir: "Synthesis of AlN-SiC Solid Solution by Combustion Nitridation"Ceramics Transaction (Am.Ceram.Soc.). 94. 3-12 (1999)

M.Ohyanagi、N.Balandina、K.Shirai、M.Koizumi、Z.A.Munir：“通过燃烧氮化合成 AlN-SiC 固溶体”《陶瓷交易》(Am.Ceram.Soc.)。

M.Mori, T.Horikawa, T.Tujikami and M.Ohyanagi: "Bending Fatigue Strength of Surface Coated Stainless Steel by SHS Process"ACCM-1(The First Asian-Australasian Conference on Composite Materials),7-9 October 1998,Osaka Japan.

M.Mori、T.Horikawa、T.Tujikami 和 M.Ohyanagi：“SHS 工艺表面涂层不锈钢的弯曲疲劳强度”ACCM-1（第一届亚洲-澳大利亚复合材料会议），1998 年 10 月 7-9 日，

D.Kata, K.Shirai, M.Ohyanagi, Z.A.Munir: "Formation of AlN-SiC Solid Solution by Combustion Synthesis in the Si@D23@D2N@D24@D2-Al-C System under Atmospheric Nitrogen Pressure"J.Am.Ceram.Soc.. (in press).

D.Kata、K.Shirai、M.Ohyanagi、Z.A.Munir：“在常压氮气压力下，在 Si@D23@D2N@D24@D2-Al-C 体系中通过燃烧合成形成 AlN-SiC 固溶体”J.Am

M.Ohyanagi: "Graded Material of Diamond Dispersed TiB_2-Si Composite by SHS/Dynamic Pseudo Isostatic Compuction" Functional Graded Materials 99. (in press).

M.Ohyanagi：“通过 SHS/动态伪等静压计算金刚石分散 TiB_2-Si 复合材料的梯度材料”功能梯度材料 99。（印刷中）。

H.Yoshida, H.Nishihara, S.Yokota, M.Ohyanagi and T.Nakaoki: "Field-Swept NMR Spectra of @D111@D1B in Pyrex Glass and @D193@D1Nb in NbN Perturbed by Quadrupole Interaction"Zeitschrift fur Naturforschung. 53a. 309-313 (1998)

H.Yoshida、H.Nishihara、S.Yokota、M.Ohyanagi 和 T.Nakaoki：“受四极相互作用扰动的 Pyrex 玻璃中 @D111@D1B 和 NbN 中 @D193@D1Nb 的场扫描 NMR 光谱”Zeitschrift 的 Naturforschung。