Effects of Pressure, Temperature and Grain Size on Synthesis and Structures of Fe-N Alloys

Abstract

Abstract: Effects of pressure, temperature and grain size on the solid state reaction between α-Fe and amorphous BN and crystal structures of the resultant of the reaction were studied by using mechanical milling and high pressure techniques at the temperatures ranging from 580 to 930 Kunder pressures between 1×10^-3 Pa and 4 GPa. It was found that the pressures and refinement of grain size can greatly accelerate the solid state reaction process. There is a critical grain size for α-Fe, below which the reaction begins to occur. In the present experiment, this grain size was measured to be about 8 nm. The crystal structures of the resultants change with the variation of pressure and temperature. A new Fe-N alloy with orthorhombic structure was produced firstly at 2 GPa and 800 K. Single phase ε-Fe_xN alloy can be obtained in the temperature range of 690 to 800 Kat the pressures of 3 to 4 GPa. However, the resultant is not any Fe-N alloy but Fe₃Balloy when the pressure is 4 GPa and the temperature is above 930 K.

Key words: Solid-state reaction, Crystal structure, High pressure, Fe-N alloy

CLC Number:

O521.2

TrendMD:

LIU Li, YAO Bi, ZHAO Xu-Dong, GUO Xing-Yuan, NING Fan-Long, SU Wen-Hui. Effects of Pressure, Temperature and Grain Size on Synthesis and Structures of Fe-N Alloys[J]. Chem. J. Chinese Universities, 2002, 23(1): 6.

References

Related Articles 15

[1]	LIU Qingqing, WANG Pu, WANG Yongshuai, ZHAO Man, DONG Huanli. Synthesis and Topochemical Polymerization Study of Naphthalene/perylene Imides Substituted Diacetylene Derivatives [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220091.
[2]	SHI Naike, ZHANG Ya, SANSON Andrea, WANG Lei, CHEN Jun. Uniaxial Negative Thermal Expansion and Mechanism in Zn（NCN） [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220124.
[3]	YUE Shengli, WU Guangbao, LI Xing, LI Kang, HUANG Gaosheng, TANG Yi, ZHOU Huiqiong. Research Progress of Quasi-two-dimensional Perovskite Solar Cells [J]. Chem. J. Chinese Universities, 2021, 42(6): 1648.
[4]	TIAN Xia,YANG Fuqun,YUAN Wei,ZHAO Lei,YAO Lei,ZHEN Xiaoli,HAN Jianrong,LIU Shouxin. Synthesis, Structure and Recognition Properties of Macrocyclic Crown Ethers with Oxadiazole ^† [J]. Chem. J. Chinese Universities, 2020, 41(3): 490.
[5]	LIU Dongmei,SU Yajing,LI Shanshan,XU Qiwei,LI Xia. Transition Metal Coordination Polymers Constructed by 4-(4-Carboxyphenoxy)isophthalic Acid: Synthesis, Crystal Structure, Fluorescence Sensing and Photocatalysis ^† [J]. Chem. J. Chinese Universities, 2020, 41(2): 253.
[6]	QIN Liulei,LIU Yang,GUAN Xiaoqin,ZHENG Xiaoyuan,ZHANG Ziyu,LIU Zunqi. Synthesis and Switchable Dielectric Properties of an Inorganic-organic Hybrid Complex [H₂(DABCO)CuCl₄]·H₂O ^† [J]. Chem. J. Chinese Universities, 2020, 41(1): 70.
[7]	LI Bing,WANG Xuemin,BAI Fengying,LIU Shuqing. Synthesises, Structures and Antibacterial Activities of a Series of Rare Earth Nitrogen Heterocyclic Complexes^† [J]. Chem. J. Chinese Universities, 2019, 40(4): 632.
[8]	WANG Dongmei,LIU Zihua,LI Guanghua,LIU Yunling,LI Chunxia. Synthesis, Structure and Fluorescent Property of Indium-based Bimetallic Metal-organic Frameworks^† [J]. Chem. J. Chinese Universities, 2018, 39(9): 1886.
[9]	TIAN Huan, ZHANG Menglong, WANG Lisha, TONG Bihai, ZHAO Zhuo. Synthesis of 4,13-Dithio Benzene and-18-Crown-6 and Its Selective Extractability on A $g + †$ [J]. Chem. J. Chinese Universities, 2018, 39(6): 1191.
[10]	ZHAO Guozheng, FAN Rongrong, YAN Xilin, TANG Wei, TANG Mingfeng, JIA Jianfeng, WU Haishun. Periodic DFT Study on Structural Transformations of Crystalline Hydrazinium 5-Nitramino-3,4-dinitropyrazolate Under High Pressures^† [J]. Chem. J. Chinese Universities, 2018, 39(2): 292.
[11]	ZHU Lei,HAN Junyan,CHANG Haizhen,QIU Yuyuan,ZHANG Yanan,PENG Danni,HU Wei,MIAO Shaobin. Different Pathways for the Cyclocondensation Reactions of 1,2-Diamine and 1,2-Diketone^† [J]. Chem. J. Chinese Universities, 2018, 39(12): 2686.
[12]	LI Zheng, LI Rui, LI Xia. Synthesis, Crystal Structure and Fluorescent Properties of Transition Metal Complexes Constructed with 2-(3'-Carboxyphenoxy)benzoic Acid and N-Donor Ligands^† [J]. Chem. J. Chinese Universities, 2018, 39(11): 2363.
[13]	CHEN Qidan, TANG Junjie, FANG Qianrong. Highly Stable Fluorine Containing Hierarchical Porous Covalent Organic Framework^† [J]. Chem. J. Chinese Universities, 2018, 39(11): 2357.
[14]	WANG Yun,BEN Teng. Methane Storage Performace of Self-activated Seaweed-based Carbon Materials^† [J]. Chem. J. Chinese Universities, 2018, 39(10): 2143.
[15]	YUN Jixing,HU Zhili,LI Yumeng,JIN Jing,CHEN Chong,YAN Xin,LIU Yonghua,DING Yu,CHI Yuxian,NIU Shuyun. Synthesis, Structure and Photoelectric Property of A Series of Ni(Ⅱ) Complexes Constructed Through Aromatic Carboxylic Ligands^† [J]. Chem. J. Chinese Universities, 2018, 39(10): 2161.