ZrN–Si_3N_4–Y_2O_3复合材料的相组成（英文）
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摘要
采用不同组分的Zr N、Si_3N_4和Y_2O_3混合粉末,在1 750℃高温固相反应合成Zr N–Si_3N_4–Y_2O_3复合材料,借助于X射线衍射仪表征6种按不同比例混合样品的物相组成。结果表明:在Zr N–Si_3N_4–Y_2O_3三元系统中,Zr N分别与Si_3N_4、Y_2O_3和Y2Si3O3N4(M相,黄长石结构)共存;M相为Si_3N_4和Y_2O_3在摩尔比为1:1时的产物,Zr N–Si_3N_4–Y_2O_3三元系统扩展为Zr N–Si_3N_4–Y_2O_3–Si O2四元系统,在该四元系统中,Zr N分别与M相、Y4Si2N2O7(J相,单斜Y4Al2O9结构)及Y5(Si O4)3N(H相,磷灰石结构)3种含钇硅酸盐及Si_3N_4、Y_2O_3共存。其中,J相和H相分别是Si2N2O(Si_3N_4和Si O2在摩尔比为1:1时的产物)和Y_2O_3在摩尔比分别为2:1和9:5时的产物。用Zr N–Si_3N_4–Y_2O_3体系相图可解析制备Zr N陶瓷和Zr N/Si_3N_4复合陶瓷的相组成。
The phase composition of Zr N–Si_3N_4–Y_2O_3 composite material synthesized with Zr N, Si_3N_4 and Y_2O_3 powders via the solid-state reaction at 1 750 was analyzed. The samples mixed at different mix ratios and synthesized were characterized by Xdiffraction. The results show that Zr N co-exists with Si_3N_4,Y_2O_3 and Y2Si3O3N4(i.e., M-phase, melillite) and the M-phase is the reaction product of Si_3N_4 and Y_2O_3 at the molar ratio of 1:1 in Zr N–Si_3N_4–Y_2O_3 system. When the ternary system expands to the Zr N–Si_3N_4–Y_2O_3 –Si O2 quaternary system on the surface of Si_3N_4 powder in the presence of Si O2, ZrN co-exists with three nitrogen-containing yttrium silicates, i.e., M-Phase, Y4Si2N2O7(i.e., J-phase or monoclinic Y4Al2O9-type), Y5(Si O4)3N(i.e., H-phase or apatite) and Si_3N_4,Y_2O_3 , respectively, in which the J-phase and H-phase are the reaction products of Si2N2O(i.e., the product of Si_3N_4 and Si O2 at the molar ratio of 1:1) and Y_2O_3 at the molar ratios of 2:1 and 9:5. It is indicated that the phase diagram of Zr N–Si_3N_4–Y_2O_3 system can clarify the phase composition of ZrN ceramic and Zr N/Si_3N_4 composite materials for their preparation.
The phase composition of Zr N–Si_3N_4–Y_2O_3 composite material synthesized with Zr N, Si_3N_4 and Y_2O_3 powders via the solid-state reaction at 1 750 was analyzed. The samples mixed at different mix ratios and synthesized were characterized by Xdiffraction. The results show that Zr N co-exists with Si_3N_4,Y_2O_3 and Y2Si3O3N4(i.e., M-phase, melillite) and the M-phase is the reaction product of Si_3N_4 and Y_2O_3 at the molar ratio of 1:1 in Zr N–Si_3N_4–Y_2O_3 system. When the ternary system expands to the Zr N–Si_3N_4–Y_2O_3 –Si O2 quaternary system on the surface of Si_3N_4 powder in the presence of Si O2, ZrN co-exists with three nitrogen-containing yttrium silicates, i.e., M-Phase, Y4Si2N2O7(i.e., J-phase or monoclinic Y4Al2O9-type), Y5(Si O4)3N(i.e., H-phase or apatite) and Si_3N_4,Y_2O_3 , respectively, in which the J-phase and H-phase are the reaction products of Si2N2O(i.e., the product of Si_3N_4 and Si O2 at the molar ratio of 1:1) and Y_2O_3 at the molar ratios of 2:1 and 9:5. It is indicated that the phase diagram of Zr N–Si_3N_4–Y_2O_3 system can clarify the phase composition of ZrN ceramic and Zr N/Si_3N_4 composite materials for their preparation.
引文
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[3]Wu W W,ZHANG G J,KAN Y M,et al.Synthesis,microstructure and mechanical properties of reactively sintered Zr B2–Si C–Zr N composites[J].Ceram Int,2013,39(6):7273–7277.
[4]ZHANG J J,WANG M X,YANG J,et al.Enhancing mechanical and tribological performance of multilayered Cr N/Zr N coatings[J].Surf Coatings Technol,2007,201(9):5186–5189.
[5]HUANG J,HUANG Z,FANG M,et al.Preparation and blast furnace slag corrosion behavior of Si C–sialon–Zr N free-fired refractories[J].Ceram Int,2014,40(7):9763–9773.
[6]DORCIOMAN G,SOCOL G,CRACIUM D,et al.Wear tests of Zr C and Zr N thin films grown by pulsed laser deposition[J].Appl Surf Sci,2014,306:33–36.
[7]GUO C B,XING Y.Research progress of ultra high temperature ceramic materials in the United States Ames Research Center[J].Cruise Miss,2010,11:82–84.
[8]SPROWSON A P,JENSEN C D,PARSONS N,et al.The effect of triclosan coated sutures on rate of surgical site infection after hip and knee replacement:a protocol for a double-blind randomised controlled trial[J].Bmc Musculoskelet Disord,2014,15(8):1515–1521.
[9]HUANG Z K,TIEN T Y.Solid-liquid reaction in the Si3N4–Al N–Y2O3system under 1 MPa of nitrogen[J].J Am Ceram Soc,1996,79(6):1717–1719.
[10]CAO G Z,HUANG Z K,FU X R,et al.Phase equilibrium studies in Si2N2O-containing systems:I.phase relations in the Si2N2O–Al2O3–Y2O3 system[J].Int J High Technol Ceram,1985,1(2):119–127.
[11]JACK K H.Sialons and related nitrogen ceramics[J].J Mater Sci,1976,11(6):1135–1158.
[12]WU L,SUN W,CHEN Y,et al.Phase relations in Si–C–N–O–R(R=La,Gd,Y)systems[J].J Am Ceram Soc,2011,94(12):4453–4458.