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β-SiAlON

β-SiAlON的相关文献在1987年到2022年内共计367篇,主要集中在化学工业、一般工业技术、冶金工业 等领域,其中期刊论文89篇、会议论文7篇、专利文献271篇;相关期刊35种,包括咸阳师范学院学报、材料导报、复合材料学报等; 相关会议6种,包括2004年全国冶金物理化学学术会议、第十三届全国高技术陶瓷学术年会、第12届全国高技术陶瓷学术年会等;β-SiAlON的相关文献由683位作者贡献,包括钟香崇、叶方保、张海军等。

β-SiAlON—发文量

期刊论文>

论文:89 占比:24.25%

会议论文>

论文:7 占比:1.91%

专利文献>

论文:271 占比:73.84%

总计:367篇

β-SiAlON—发文趋势图

β-SiAlON

-研究学者

  • 钟香崇
  • 叶方保
  • 张海军
  • 黄朝晖
  • 房明浩
  • 刘艳改
  • 徐利华
  • 王习东
  • 佘海中
  • 祝洪喜
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 段红娟; 张向阳; 韩磊; 张海军
    • 摘要: 以SiC颗粒、Si粉、Al粉和活性α-Al_(2)O_(3)粉为原料,以Fe为催化剂,采用原位催化氮化法制备了β-SiAlON(z=3)结合SiC材料。研究了氮化温度(分别为1350、1400和1450°C)和Fe加入量(分别为Si粉质量的1%、2%和3%)对合成材料的物相组成、显微结构、显气孔率、体积密度和高温抗折强度的影响。结果表明:氮化温度以1400°C为佳,Fe加入量以Si粉质量的1%为佳;加入Si粉质量的1%的Fe、在1400°C保温3 h氮化制备的试样中生成的β-SiAlON晶须直径较为均匀,试样的氮化程度、致密度和高温抗折强度均较大。
    • Zviad Kovziridze; Natela Nijharadze; Gulnazi Tabatadze; Teimuraz Cheishvili; Maia Mshvildadze; Nazibrola Kutsiava; Maia Balakhashvili; Nino Dakhvelidze; Salome Gvazava
    • 摘要: Goal: To obtain SIALON containing composites by reactive sintering method in SiC-B4C-Si-Al-Al2O3 system. Using this method of synthesis, it became possible to obtain composites with different percentages of SIALON. Our task was also to study the phase composition in the SiC-B4C-Si-Al-Al2O3 system. Method: The obtained mass was grounded in an attritor and the consolidated composite was obtained by hot pressing at 1800°C, 40 minutes, delaying at final temperature for 8 min. under 30 MPa pressure. To study the phase composition of the composites, we conducted an X-ray structural analysis on the DRON-3 device, and to study the microstructure, we conducted research on an optical microscope and a raster electron microscope “Nanolab 7” of the company “OPTON”. The values of the electrical parameters of the study composites were calculated on the basis of the obtained “lgp-t” dependence. Result: In SiC-B4C-Si-Al-Al2O3 system we obtained composites with a matrix composed of: β-SIALON, silicon carbide, corundum and nanoparticles of boron nitride. Conclusion: The phase composition of the obtained composite provides high physical-technical and performance properties of these composites. Compression strength—2187 MPA, Bending strength—285 MPa, Thermal expansion coefficient a20-700-3.8 × 10-60 C.
    • 王妍月; 刘新; 曲殿利; 郭玉香; 彭晓文
    • 摘要: This work analyzed the feasibility of TiO2 served as the sintering additive for β-SiAlON ceramics preparation.The starting materials Al powder (≤0.074 mm),Si powder (≤0.074 mm) and α-Al2O3 powder (≤0.074 mm) were ball-milled for 12 h using anhydrous alcohol as the grinding medium,and dried at 60°C for 12 h.The dried mixture was bonded by glycol and phenolic resin and then compacted.β-SiAlON ceramics were obtained by nitriding the compacts at 1 350,1 400,1 450,1 500 and 1550 °C for 3 h in a tubular nitriding furnace,respectively.Influences of the firing temperature and TiO2 addition on the sintering properties of β-SiAlON ceramics were studied.The phase composition and cell parameters were examined by XRD.The micromorphology was analyzed by SEM and EDS.The results show that adding 4 mass% TiO2 reduces the nitriding sintering temperature of β-SiAlON,and more β-SiAlON forms.The addition of TiO2 can increase the solubility of Al2O3 in Si3N4 at low temperatures,and form the liquid at high temperatures,which is beneficial to the densification sintering of β-SiAlON.%为探讨TiO2作为助烧结剂制备β-SiAlON的可行性,以粒度均为0.074 mm的金属Al粉、单质Si粉、α-Al2O3粉为主要原料,以无水乙醇为介质球磨12 h后,将经60 °C干燥12h后的粉料以乙二醇和酚醛树脂为结合剂混合均匀成型,在管式氮化炉中分别经1 350、1 400、1 450、1 500和1 550°C保温3h高温氮化制备β-SiAlON陶瓷,研究了烧成温度和添加TiO2对β-SiAlON陶瓷烧结性能的影响.借助XRD分析试样中晶相组成和晶胞参数,采用SEM及EDS对试样的微观形貌进行分析与观察.结果表明:高温氮化制备β-SiAlON的过程中,添加4%(w)的TiO2可以降低氮化烧结温度,增加β-SiAlON的生成量;TiO2的加入在较低温阶段可以促进Al2O3在Si3N4中的固溶,高温阶段则形成液相有利于β-SiAlON的致密化烧结.
    • 刘新; 曲殿利; 郭玉香; 彭晓文
    • 摘要: β-Sialon ceramic was prepared by high temperature nitriding reaction of raw material including Al metal powder,Si powder andα-Al2 O3 fine powder.Adding different mass fractions of Y2 O3 and TiO2 as sintering addi-tive,the effect of Y3+ and Ti4+ on the composition,lattice parameters,sintering properties and microstructure of crystalline phases was studied and compared.The crystalline phases and microstructure were determined by XRD and SEM,respectively.The lattice parameters of the crystalline phases were estimated by X'Pert Plus software. The phase composition was evaluated by semi-quantification method.The results show that the addition of Y2 O3 and TiO2 makes the formation temperature ofβ-Sialon lower obviously.Adding of Y2 O3 and TiO2 has a beneficial effect on the solid solubility of Al2 O3 dissolving into Si3 N4 ,the content and the lattice parameters ofβ-Sialon phase in-crease and the sintering properties are improved.Comprehensive analysis shows that Y2 O3 and TiO2 promote the sintering properties ofβ-Sialon ceramic,the formation of pressureless sinteredβ-Sialon ceramic is possible using low cost TiO2 powder instead of the conventional rare earth as sintering additives.%以金属Al粉、单质Si粉、α-Al2 O3微粉为主要原料,高温氮化反应制备β-Sialon陶瓷.通过在反应物中分别添加不同含量的Y2 O3和TiO2烧结剂,研究分析和对比了Y3+和Ti4+对β-Sialon陶瓷晶相组成、晶格常数、微观结构及烧结性能的影响.采用SEM及EDS对试样的微观形貌进行观察与分析,利用X'Pert Plus软件分析晶相的晶格常数,采用半定量法计算试样晶相组成.结果表明:Y2 O3和TiO2可显著降低高温氮化法制备β-Sialon陶瓷试样中β-Sialon相的生成温度.伴随着Y2 O3和TiO2的引入,Al2 O3在Si3 N4中的固溶度提高,β-Sia-lon晶相的生成量增加,晶格常数和晶胞体积增大,烧结性能得到改善.综合对比分析,Y2 O3和TiO2均对制备β-Sialon陶瓷具有良好的促烧结作用,用成本较低的TiO2代替传统的稀土氧化物作为助烧结剂无压烧结制备β-Sialon陶瓷是可行的.
    • 王光; 单英春; 徐久军
    • 摘要: 采用无压烧结技术,以Si3 N4、AlN和Al2 O3为基体原料,淀粉为造孔剂,外掺5%(质量分数)Y2 O3作为烧结助剂,研究淀粉掺量对β-SiAlON(z=2)多孔陶瓷物相组成、微观结构和力学性能的影响规律.研究结果表明,当造孔剂掺量≤60%(质量分数)时,所制备多孔陶瓷的主相均为β-SiAlON,且当淀粉掺量在20%~40%(质量分数)时,气孔内壁形成柱状15R,而当淀粉掺量增加到60%(质量分数)时,气孔内壁则为致密的交错生长的层状12H;β-SiAlON多孔陶瓷的气孔形貌为椭球形,当淀粉掺量为20%(质量分数)时,以独立气孔为主,长轴约为30~80μm,而当淀粉掺量为60%(质量分数)时,以连通型气孔为主;当气孔率约为40%(淀粉掺量60%(质量分数))时,β-SiAlON多孔陶瓷的抗弯强度为117.3 MPa,是气孔大小相近氮化硅多孔陶瓷抗弯强度的1.5倍.高强度的基体、椭球形的气孔以及致密的交错生长的15R 或12H 孔壁是使β-SiAlON 多孔陶瓷具有高强度的主要原因.%β-SiAlON(z=2)porous ceramics were prepared by pressureless sintering with Si3 N4 ,AlN and Al2 O3 as matrix material,5wt% Y2 O3 as sintering additives.The influence rule of starch content on phase composi-tion,microstructure and mechanical properties were analyzed.The results show that the main phase of porous ceramics (starch content ≤60wt%)wereβ-SiAlON,the interface of pore were columnar crystal 15R with starch content 20%-40wt%,and lamellar 12H with 60wt%;Porous ceramics were ellipsoidal shape pore mor-phology,porous ceramic (starch content was 20wt%)was mainly in independent pore,major axises were 30-80μm,porous ceramic (starch content was 60wt%)was mainly in connected pore;the flexure strength ofβ-SiAlON porous ceramics was 117.3 MPa with the porosity 40% (starch content was 60wt%),which was 1.5 fold of Si3 N4 porous ceramics with similar size pores.High strength of matrix,ellipsoidal shape of pore and den-sity of pore interface with 12H or 15R were the primary cause of preparing high strengthβ-SiAlON porous ce-ramic.
    • 李海艳; 张勇; 李蓉; 宋典源
    • 摘要: 非均相沉淀法制备的含有AlN、Al203的SiAlON陶瓷进行常压烧结,采用X线衍射仪(XRD)、电镜扫描(SEM)等方法研究了温度对该陶瓷相组成、显微结构和力学性能等方面的影响.结果表明:随着烧结温度升高,陶瓷晶粒形状由片状晶转变为高长径比的六方柱状SiAlON晶粒.该材料在原料配比的Z值为0.9时,且经1750°C烧结得到的陶瓷性能相对较优.材料力学性能密度为3.290g/cm3、抗弯强度为910 MPa、维氏硬度值为1580、断裂韧性达到了8.10 MPa·m1/2.当烧结温度大于1750°C时,生成了极大颗粒,材料微观结构恶化,密度、性能迅速下降.
    • 陈连发; 陈悦; 强亮生; 张明福
    • 摘要: In order to study the roles and effects of SiC particles on β-SiAlON/SiC nanocomposite ceramic. β-SiAlON/SiC nanocomposite ceramic was fabricated by cold isolated pressing and pressureless sintering, using β-Si3N4, Al2O3 and AlN as matrix powder, doping SiC particles as second phase, adding Y2O3 as sintering aid. Phase composition was studied by XRD, microstructure was detected by SEM, and element composition was analyzed by EDS. The results show that: samples have high density and low weight loss rate when the SiCP content is 5wt.%. With the increase of SiCP content, the radial and axial shrinkage of samples trends to decrease gradually; the z value change ofβ-SiAlON phase ranges from 1 to 4, which increases gradually; the elongated grain diameter decreases gradually.%为了研究SiC颗粒对β-SiAlON/SiC纳米复相陶瓷的作用及影响,以β-Si3N4,Al2O3及AlN作为形成β-SiAlON相的主要原料,以SiC颗粒为第二相,加入Y2O3作为烧结助剂,采用冷等静压成型及无压烧结工艺制备了β-SiAlON/SiC纳米复相陶瓷。利用XRD分析试样相组成,用SEM观察试样显微组织形貌,用EDS分析试样的元素组成。结果表明:SiCP含量为5wt.%时,试样具有较高的密度及较低的失重率。随着SiCP含量的增加,试样的径向收缩率和轴向收缩率均呈逐渐下降趋势;β-SiAlON相的z值从1变化至4,且逐步提高;β-SiAlON柱状晶的直径逐渐下降。
    • 岳建设; 李祯; 于占江
    • 摘要: 由于使用了廉价的Si粉作为原料,反应烧结工艺可以大幅降低β-SiAlON的生产成本。Si粉氮化反应过程中,添加烧结助剂能够有效地促进SiAlON相的产生,因为液相的产生促进物质的传输。对反应烧结后的试样进行高温烧结,1700°C烧结后,添加烧结助剂和没有添加烧结助剂的试样均可以获得单一的β-SiAlON相。高温烧结过程中,Al2O3自身的扩散加剧,可以有效地形成β-SiAlON相,另外,反应中产生的AlN也促进了β-SiAlON相的形成。%Reaction bonding method can decrease the cost of β-SiAlON production due to the use of cheap Si raw material. During the process, the liquid phase can promote the formation of β-SiAlON phase, which helps improve the mass transmission. Sintered at 1700°C, the reaction bonded samples with or without sintering additives exhibited single β-SiAlON phase. During the high temperature sintering, the self-diffusion of Al2O3 also improved, which promotes the formation of β-SiAlON. On the other hand, the formation of AlN also contributes to the formation of β-SiAlON phase.
    • 岳建设; 李祯; 赵琴
    • 摘要: 使用廉价的Si粉作为原料通过反应烧结获得了Si3N4,后续高温烧结过程中,Si3N4与粉料中Al2O3发生固溶反应,制备出单相β-SiAlON陶瓷.经过1 700 °C高温烧结后,获得-SiAlON相和β-Si3N4混合相陶瓷,随着烧结温度增加至1 800 °C,Al2O3在Si3N4晶格中完全固溶,形成了单一β-SiAlON陶瓷.选用Y2O3和Sm2O3两种烧结助剂,并对比其对反应烧结β-SiAlON陶瓷微观结构和力学性能的影响.结果显示,使用Sm2O3制备出长径比较Y2O3高的柱状晶粒,柱状晶粒相互交织桥接和连接,可以显著提高β-SiAlON的力学性能.
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