Formation of anatase porous ceramics by hydrothermal hot-pressing of amorphous titania spheres

Kazumichi Yanagisawa; Koji Ioku; Nakamichi Yamasaki

doi:10.1111/j.1151-2916.1997.tb02982.x

Formation of anatase porous ceramics by hydrothermal hot-pressing of amorphous titania spheres

Kazumichi Yanagisawa, Koji Ioku, Nakamichi Yamasaki

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Anatase porous ceramics were produced at low temperatures below 350°C by hydrothermal hot-pressing of amorphous titania consisting of spherical particles prepared by hydrolysis of titanium tetraethoxide. After fine anatase crystals were formed in the original amorphous spheres by hydrothermal hot-pressing, the spherical particles were deformed and the fine anatase crystals flowed into the interstices among the original spheres by compression from outside the autoclave to form a compact with homogeneous distribution of fine pores. The fine anatase crystals in the compacts were bonded together by dissolution and deposition to form a compact with high mechanical strength. The porous anatase ceramics with open pores were prepared by drying in air after removing water which had occupied the pores in the compacts during hydrothermal hot-pressing.

Original language	English
Pages (from-to)	1303-1306
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	80
Issue number	5
DOIs	https://doi.org/10.1111/j.1151-2916.1997.tb02982.x
Publication status	Published - 1997 May
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1111/j.1151-2916.1997.tb02982.x

Fingerprint Dive into the research topics of 'Formation of anatase porous ceramics by hydrothermal hot-pressing of amorphous titania spheres'. Together they form a unique fingerprint.

Cite this

@article{848949b7de684e2b8fe2c6d89a493528,

title = "Formation of anatase porous ceramics by hydrothermal hot-pressing of amorphous titania spheres",

abstract = "Anatase porous ceramics were produced at low temperatures below 350°C by hydrothermal hot-pressing of amorphous titania consisting of spherical particles prepared by hydrolysis of titanium tetraethoxide. After fine anatase crystals were formed in the original amorphous spheres by hydrothermal hot-pressing, the spherical particles were deformed and the fine anatase crystals flowed into the interstices among the original spheres by compression from outside the autoclave to form a compact with homogeneous distribution of fine pores. The fine anatase crystals in the compacts were bonded together by dissolution and deposition to form a compact with high mechanical strength. The porous anatase ceramics with open pores were prepared by drying in air after removing water which had occupied the pores in the compacts during hydrothermal hot-pressing.",

author = "Kazumichi Yanagisawa and Koji Ioku and Nakamichi Yamasaki",

year = "1997",

month = may,

doi = "10.1111/j.1151-2916.1997.tb02982.x",

language = "English",

volume = "80",

pages = "1303--1306",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

number = "5",

}

TY - JOUR

T1 - Formation of anatase porous ceramics by hydrothermal hot-pressing of amorphous titania spheres

AU - Yanagisawa, Kazumichi

AU - Ioku, Koji

AU - Yamasaki, Nakamichi

PY - 1997/5

Y1 - 1997/5

N2 - Anatase porous ceramics were produced at low temperatures below 350°C by hydrothermal hot-pressing of amorphous titania consisting of spherical particles prepared by hydrolysis of titanium tetraethoxide. After fine anatase crystals were formed in the original amorphous spheres by hydrothermal hot-pressing, the spherical particles were deformed and the fine anatase crystals flowed into the interstices among the original spheres by compression from outside the autoclave to form a compact with homogeneous distribution of fine pores. The fine anatase crystals in the compacts were bonded together by dissolution and deposition to form a compact with high mechanical strength. The porous anatase ceramics with open pores were prepared by drying in air after removing water which had occupied the pores in the compacts during hydrothermal hot-pressing.

AB - Anatase porous ceramics were produced at low temperatures below 350°C by hydrothermal hot-pressing of amorphous titania consisting of spherical particles prepared by hydrolysis of titanium tetraethoxide. After fine anatase crystals were formed in the original amorphous spheres by hydrothermal hot-pressing, the spherical particles were deformed and the fine anatase crystals flowed into the interstices among the original spheres by compression from outside the autoclave to form a compact with homogeneous distribution of fine pores. The fine anatase crystals in the compacts were bonded together by dissolution and deposition to form a compact with high mechanical strength. The porous anatase ceramics with open pores were prepared by drying in air after removing water which had occupied the pores in the compacts during hydrothermal hot-pressing.

UR - http://www.scopus.com/inward/record.url?scp=0031144145&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031144145&partnerID=8YFLogxK

U2 - 10.1111/j.1151-2916.1997.tb02982.x

DO - 10.1111/j.1151-2916.1997.tb02982.x

M3 - Article

AN - SCOPUS:0031144145

VL - 80

SP - 1303

EP - 1306

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 5

ER -