+Advanced Search
Effect of colloidal drying process on preparation of CaMnO3 powder
DOI:
Author:
Affiliation:

Anhui Provincial Key Lab of Advanced Functional Materials and Devices,College of Materials Science and Engineering,Hefei University of Technology,Hefei,,Anhui Provincial Key Lab of Advanced Functional Materials and Devices,College of Materials Science and Engineering,Hefei University of Technology,Hefei,Anhui Provincial Key Lab of Advanced Functional Materials and Devices,College of Materials Science and Engineering,Hefei University of Technology,Hefei,Anhui Provincial Key Lab of Advanced Functional Materials and Devices,College of Materials Science and Engineering,Hefei University of Technology,Hefei,Anhui Provincial Key Lab of Advanced Functional Materials and Devices,College of Materials Science and Engineering,Hefei University of Technology,Hefei

Clc Number:

TQ139.2

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    The gel was prepared by sol-gel method using metal nitrate as raw materials. All kinds of dry gel precursors were obtained under different drying conditions, then the CaMnO3 polycrystalline powders were obtained by calcinating the dry gel. This paper studies the effects of different drying processes on preparation of CaMnO3 powder, and the obtained powders were characterized by XRD, SEM, TEM and laser particle size analyzer. The results show that the continuous heating step for various drying temperatures is beneficial to obtain dry gel precursor with complete dehydration.The drying process of 90℃+120℃+140℃+160℃ is the best among the four processes. The CaMnO3 polycrystalline powder with good crystallinity, uniform particles and regular morphology was obtained after calcining the dry gel at 950℃, the CaMnO3 polycrystalline particles were composed by single-crystals with different orientations.

    Reference
    Related
    Cited by
Get Citation

[ZHANG Jingwen, ZHANG Feipeng, YANG Xinyu, WANG Pan, WANG Xiang, ZHANG Jiuxing. Effect of colloidal drying process on preparation of CaMnO3 powder[J]. Rare Metal Materials and Engineering,2018,47(10):3213~3217.]
DOI:[doi]

Copy
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:January 04,2017
  • Revised:September 03,2018
  • Adopted:March 16,2017
  • Online: November 08,2018
  • Published: