可加工陶瓷及复合材料的制备、表征与应用。主要包括：

（1）三元层状可加工陶瓷（MAX相）的强韧化研究；

（2）可加工、耐高温、抗热震陶瓷的设计、制备与表征；

（3）氮化硼陶瓷及其复合材料的制备与应用研究。

　　发展了颗粒增强三元层状可加工陶瓷（MAX相）的制备方法，提出了第二相硬质颗粒对层状可加工陶瓷的强韧化机理。研究了层状可加工陶瓷固溶体的制备方法和强化机理、固溶体的抗高温氧化性能、热稳定性及高温力学性能等。已开发出柔性耐高温绝缘材料、可加工高温介电材料等。

　　图1 柔性耐高温绝缘陶瓷套管

　　图2 可加工隔热陶瓷（白色内衬）

　　图3 氮化硼基复合材料制品

[1]  J. X. Chen and Y. C. Zhou. Strengthening of Ti3AlC2 by incorporation of Al2O3. Scripta Mater. 50(6)897-901(2004)

[2]  Y. C. Zhou,J. X. Chen and J.Y. Wang. Strengthening of Ti3AlC2 by incorporation of Si to form Ti3Al1-xSixC2 solid solutions. Acta Mater. 54(5)1317-1322(2006)

[3]  J. X. Chen and Y. C. Zhou. Effect of Si Content on the oxidation resistance of Ti3Al1-xSixC2 (x￡0.25) solid solutions at 100-1400oC in air. Oxi. Metal 65(1-2) 123-135(2006)

[4]  Y. W. Bao,J. X. Chen,X. H. Wang and Y. C. Zhou. Shear strength and shear failure of layered machinable Ti3AlC2 ceramics. J. Europ. Ceram. Soc.,24(5) 855-860 (2004) [5]  J. X

. Chen,M. Y. Liu, Y. W. Bao and Y. C. Zhou. Failure-mode dependence of the strengthening effect in Ti3AlC2/10 vol.% Al2O3 composite. Int. J. Mat. Res.,97(8) 1115-1117 (2006)[6]  J. X. Chen an

d Y. C. Zhou. Abnormal thermal expansion and thermal stability of Ti3Al1-xSixC2 solid solutions. Scripta Mater. 55(8) 897-901(2006)[7]  J. X. Chen J.

L. Li and Y. C. Zhou. In situ synthesis of Ti3AlC2/TiC-Al2O3 composite from TiO2-Al-C system. J.Mater. Sci. Technol. 22(4) 455-458 (2006)[8]  J. X. Chen,Y

. C. Zhou, H. B. Zhang,D. T. Wan and M. Y. Liu. Thermal stability of Ti3AlC2/Al2O3 composites in high vacuum. Mater. Chem. Phys. 104(1) 109-112 (2007)[9]  Y. Sun,J. X.

Chen,X. X. Ma and X. G. Liu. The effect of voltage on microstructure of iron by nitrogen plasma immersion ion implantation. Surf. Coat. Technol. 169-170(1) 438-442 (2003)[10] Y. Sun,J. X.

Chen,L. F. Xia,X. G. Liu and S. Y. Xu. Progress in research of plasma-based ion implantation at elevated temperature. Transactions of Materials and Heat Treatment 22(3) 55-61 (2001) [11] D. T. Wan,F.

L. Meng,Y. C. Zhou, Y. W. Bao and J. X. Chen. Effect of grain size,notch width,testing temperature on the fracture toughness of Ti3Si(Al)C2 and Ti3AlC2 using the chevron notched beam method. J. Europ. Ceram. Soc. 28(3) 663-669 (2008)[12] L. Wu,J. X.

Chen, M. Y. Liu,Y. W. Bao,and Y. C. Zhou. Reciprocating friction and wear behavior of Ti3AlC2 and Ti3AlC2/Al2O3 composites againstAISI52100 bearing steel. Wear 266(1-2) 158-166 (2008)[13] H. B. Zhang,

X. Wu,K. G. Nickel,J. X. Chen,V. Presser. High-pressure powder x-ray diffraction experiments and ab initio calculation of Ti3AlC2. J. Appl. Phys. 106(1) 013519 (2008)[14] Y. L. Liu,J.

X. Chen,Y. C. Zhou. Effect of Ti5Si3 on wear properties of Ti3Si(Al)C2. J. Europ. Ceram. Soc. 29(16) 3379-3385 (2009)[15] Y. Liang,Z.

Q. Sun,J. X. Chen,X. X. Liu,Y. C. Zhou. Electrophoretic deposition of Ti3Si(Al)C2 from aqueous suspension. J. Am. Ceram. Soc. 93(7) 1916-1921 (2010)[16] L. Wu,L. F.

He,J. X. Chen,X. P. Lu,Y. C. Zhou. Reciprocating friction and wear behavior of Zr2[Al(Si)]4C5 and Zr2[Al(Si)]4C5-SiC composite against Si3N4 ball. J. Am. Ceram. Soc. 93(8) 2369-2376 (2010)[17] Y. Liang,M.

Y. Liu,J. X. Chen,X. X. Liu,Y. C. Zhou. Electrodeposition and characterization of Ni/ Ti3Si(Al)C2 composite coating. J.Mater. Sci. Technol. 27(11) 1016-1024 (2011)[18] X. H. Wang,F

. Z. Li,J. X. Chen,Y. C. Zhou. Insights into high temperature oxidation of Al2O3-forming Ti3AlC2. Corr. Sci. 58(1) 95-103 (2012)

近期国际国内会议报告及任职等：

[1] Jixin Chen,Yonglai Liu,Yanchun Zhou. In-situ synthesis and properties of Ti3Si(Al)C2/Ti5Si3 composites. 8th Pacific Rim Conference on Ceramic and Glass Technology. Vancouver,British Columbia,Canada,2009.

[2] Jixin Chen,Yanchun Zhou,Jie Zhang. Thermal stability of Ti3Al(Si)C2 solid solutions. 12th International Ceramicx Congress. Montecatini Terme,Italy,2010.

[3] 陈继新，陈琳，周延春。钇硅氧氮-氮化硼复合材料的制备与性能。中国材料大会。山西太原，中国，2012

近期获得专利：

[1] 周延春；陈继新。一种氧化铝颗粒增强铝碳化钛基复合材料及其制备方法。专利号：ZL 200410050692.7。

[2] 周延春；陈继新。一种铝碳化钛/硅化钛复合材料及其制备方法。专利号：ZL 200410082975.X。

[3] 周延春；陈继新。一种铝碳化钛－碳化钛/氧化铝复合材料及其制备方法。专利号：ZL 200510047788.2。

[4] 周延春；陈继新。一种铝碳化钛基含硅固溶体材料及其制备方法。专利号：ZL 200410082823.X。

[5] 周延春；陈继新，一种耐高温绝缘套管的制备方法，专利号：ZL 200710081905.6。