Development of High Thermal Conductivity Silicon Nitride Ceramics Using Rare-Earth Metal Complexes as the Precursors for Sintering Aids

以稀土金属配合物为烧结助剂前驱体开发高导热氮化硅陶瓷

基本信息

  • 批准号:
    16550159
  • 负责人:
  • 金额:
    $ 2.43万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2004
  • 资助国家:
    日本
  • 起止时间:
    2004 至 2006
  • 项目状态:
    已结题

项目摘要

1. Synthesis of rare-earth metal complexes, and search for appropriate solventsSelecting CN-as a ligand without oxygen atom, the synthesis of cyano complex was examined from an aqueous solution of Y3+, which produced only hydroxides in any conditions. Selecting ethylene diamine (ED), the [Y(ED)3]C13 complex was successfully synthesized using ED itself as a solvent, which was confirmed to be highly hygroscopic.It was found that a non-aqueous solvent CH3CN dissolved YC13. Using it as a solvent, a [Y(ED)3]C13 solution was synthesized using a stoichiometric amount of ED. Powders of Silicon nitride and sintering aids were mixed with the solution and were subsequently dried, which was a new method for homogeneously adding the complex.2. Fabrication of silicon nitride sintered bodies and their evaluationAdding [Y(ED)3]C13 as a "de-oxygen sintering aid", silicon nitride sintered bodies were fabricated. However, they showed very low sintered densities about 60 %. Estimated thermal conductivities of dense sintered bodies using the Maxwell relationship were found to be higher than those without "de-oxygen sintering aid". The XRD showed the existence of Y2Si3N6 which had never reported. The dense sintered body fabricated by hot-pressing at 1800℃ was annealed at 1850℃ to finish the phase transformation. This resulted in significant swelling of sintered body, which would be due to the densification before the complete decomposition of complex.3. Effect of the nitrides and carbides of the group IV elementsSilicon nitride sintered bodies fabricated by adding the nitrides and carbides of the group IV elements were evaluated. Although the thermodynamic calculations predicted that only the ZrN and HfN could act as the "de-oxygen sintering aid" among MX (M=Ti, Zr or Hf, X=N or C), all the sintered bodies showed lower thermal conductivities than those without MX. It was found that the group IV element nitrides significantly improved densification.
1。稀土金属络合物的合成,并寻找适当的溶液选择CN-无氧原子的配体,从Y3+的水溶液中检查了Cyano复合物的合成,该溶液在任何条件下仅生产羟基。选择乙烯二胺(ED),[Y(ed)3] C13复合物通过ED本身成功合成为溶剂,被证实是高度湿的。将其用作偿付能力,使用化学计量量的ED合成[Y(ed)3] C13溶液。将氮化硅和烧结剂的粉末与溶液混合并随后干燥,这是一种均匀添加复合物的新方法。2。制造了氮化硅烧结的身体及其评估量[y(ed)3] C13作为“脱氧烧结辅助工具”,硝酸硅烧结的身体被制造。但是,他们显示出非常低的烧结密度约为60%。发现使用麦克斯韦关系的密集烧结物体的估计热导率比没有“脱氧烧结辅助”的热传导率更高。 XRD显示了从未报告过的Y2SI3N6的存在。在1800年以1850℃退火以完成相变的热压,通过热压在1800年造成的密集烧结的身体。这导致烧结的身体肿胀,这是由于复合物的完全分解前的静止。3。评估了IV组元素的氮化物和碳化物的氮化物烧结物体通过添加IV组元素的氮化物和碳化物制造的氮化物的作用。尽管热力学计算预测,只有ZRN和HFN才能充当MX(M = Ti,Zr或Hf,X = N或C)之间的“ De-Oxygen烧结辅助工具”,但所有烧结的身体显示出比没有MX的人的热导率要低。发现该组IV元素氮化物可显着改善致密化。

项目成果

期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
In situ measurement of capacitance : A method for fabricating nanoglass
  • DOI:
    10.1111/j.1551-2916.2005.00257.x
  • 发表时间:
    2005-06
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Y. Ohta;M. Kitayama;K. Kaneko;S. Toh;F. Shimizu;K. Morinaga
  • 通讯作者:
    Y. Ohta;M. Kitayama;K. Kaneko;S. Toh;F. Shimizu;K. Morinaga
Microwave Dielectric Properties of β-Si3N4 Ceramics
β-Si3N4陶瓷的微波介电性能
高熱伝導率窒化珪素の材料設計
高导热氮化硅材料设计
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    折登;藤原;仙北;門出;齊藤;小中原;柳;小川;今田;金政;石井共著;北山 幹人
  • 通讯作者:
    北山 幹人
The Wulff Shape of Alumina : IV.Ti^<4+>-Doped Alumina
氧化铝的武尔夫形状:IV.Ti^<4>-掺杂氧化铝
Effects of Rare-Earth Oxide Additives on the Phase Transformation Rates of Si_3N_4
稀土氧化物添加剂对Si_3N_4相变速率的影响
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

KITAYAMA Mikito其他文献

KITAYAMA Mikito的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('KITAYAMA Mikito', 18)}}的其他基金

Investigation on the segregation behavior of rare-earth ions at the silicon nitried-grain boundary phase interface
硅氮化物-晶界相界面稀土离子偏聚行为的研究
  • 批准号:
    19560684
  • 财政年份:
    2007
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似国自然基金

高导热微米级非磁性颗粒强化磁流体换热机理研究
  • 批准号:
    11902135
  • 批准年份:
    2019
  • 资助金额:
    25.0 万元
  • 项目类别:
    青年科学基金项目
低热导率高力学性能多孔氧化铝陶瓷材料的设计与研究
  • 批准号:
    51872181
  • 批准年份:
    2018
  • 资助金额:
    60.0 万元
  • 项目类别:
    面上项目
基于取向共连续网络结构的高导热聚合物的构筑及导热机理研究
  • 批准号:
    51863008
  • 批准年份:
    2018
  • 资助金额:
    40.0 万元
  • 项目类别:
    地区科学基金项目
周期性温变作用下孔隙溶液相变特征及其诱导混凝土导热性能演化
  • 批准号:
    51869031
  • 批准年份:
    2018
  • 资助金额:
    40.0 万元
  • 项目类别:
    地区科学基金项目
真空封装/微孔粉体复合高温隔热材料的隔热机理和使役模拟研究
  • 批准号:
    51872265
  • 批准年份:
    2018
  • 资助金额:
    60.0 万元
  • 项目类别:
    面上项目

相似海外基金

Affinity evaluation for development of polymer nanocomposites with high thermal conductivity and interfacial molecular design
高导热率聚合物纳米复合材料开发和界面分子设计的亲和力评估
  • 批准号:
    23KJ0116
  • 财政年份:
    2023
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
Elucidation of Mechanism of Phonon Thermal Conductivity Reduction by Orbital Fluctuation for Development of Novel Thermal Functional Materials
阐明轨道涨落降低声子导热率的机制,以开发新型热功能材料
  • 批准号:
    23KJ0893
  • 财政年份:
    2023
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
Characterization of passive and active whole-body heat stress responses in obese and non-obese adults
肥胖和非肥胖成人被动和主动全身热应激反应的特征
  • 批准号:
    10675123
  • 财政年份:
    2023
  • 资助金额:
    $ 2.43万
  • 项目类别:
Phonon-engineered extreme thermal conductivity of two-dimensional heterostructures
二维异质结构的声子工程极限导热率
  • 批准号:
    22KF0102
  • 财政年份:
    2023
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
I-Corps: High thermal conductivity polymers and phase change materials based on graphene
I-Corps:基于石墨烯的高导热聚合物和相变材料
  • 批准号:
    2330247
  • 财政年份:
    2023
  • 资助金额:
    $ 2.43万
  • 项目类别:
    Standard Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了