Properties and microstructure of Ni-alumina composite materials prepared by the sol/gel method

E. Breval; G. Dodds; Carlo G. Pantano

doi:10.1016/0025-5408(85)90093-5

Properties and microstructure of Ni-alumina composite materials prepared by the sol/gel method

E. Breval, G. Dodds, Carlo G. Pantano

Research output: Contribution to journal › Article

46 Scopus citations

Abstract

Sol-gel techniques have been used to make mm-size pieces of Ni-alumina gels for abrasive use. The microstructure was studied extensively by electron microscopy methods and by electron and x-ray diffraction. The hardness, stiffness, and toughness were measured by indentation methods. Seeding of the gel with small additions of nm-size α-Al₂O₃ grains resulted in enhanced α-Al₂O₃ crystallization, a denser structure and better mechanical properties. The best Ni-alumina gel specimens had hardnesses and stiffnesses comparable to successful abrasive products and even better fracture toughnesses.

Original language	English (US)
Pages (from-to)	1191-1205
Number of pages	15
Journal	Materials Research Bulletin
Volume	20
Issue number	10
DOIs	https://doi.org/10.1016/0025-5408(85)90093-5
State	Published - Jan 1 1985

Fingerprint

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

Breval, E., Dodds, G., & Pantano, C. G. (1985). Properties and microstructure of Ni-alumina composite materials prepared by the sol/gel method. Materials Research Bulletin, 20(10), 1191-1205. https://doi.org/10.1016/0025-5408(85)90093-5

@article{7c6df5a1c7ce4afaa63ba17480363d87,

title = "Properties and microstructure of Ni-alumina composite materials prepared by the sol/gel method",

abstract = "Sol-gel techniques have been used to make mm-size pieces of Ni-alumina gels for abrasive use. The microstructure was studied extensively by electron microscopy methods and by electron and x-ray diffraction. The hardness, stiffness, and toughness were measured by indentation methods. Seeding of the gel with small additions of nm-size α-Al2O3 grains resulted in enhanced α-Al2O3 crystallization, a denser structure and better mechanical properties. The best Ni-alumina gel specimens had hardnesses and stiffnesses comparable to successful abrasive products and even better fracture toughnesses.",

author = "E. Breval and G. Dodds and Pantano, {Carlo G.}",

year = "1985",

month = jan,

day = "1",

doi = "10.1016/0025-5408(85)90093-5",

language = "English (US)",

volume = "20",

pages = "1191--1205",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Limited",

number = "10",

}

TY - JOUR

T1 - Properties and microstructure of Ni-alumina composite materials prepared by the sol/gel method

AU - Breval, E.

AU - Dodds, G.

AU - Pantano, Carlo G.

PY - 1985/1/1

Y1 - 1985/1/1

N2 - Sol-gel techniques have been used to make mm-size pieces of Ni-alumina gels for abrasive use. The microstructure was studied extensively by electron microscopy methods and by electron and x-ray diffraction. The hardness, stiffness, and toughness were measured by indentation methods. Seeding of the gel with small additions of nm-size α-Al2O3 grains resulted in enhanced α-Al2O3 crystallization, a denser structure and better mechanical properties. The best Ni-alumina gel specimens had hardnesses and stiffnesses comparable to successful abrasive products and even better fracture toughnesses.

AB - Sol-gel techniques have been used to make mm-size pieces of Ni-alumina gels for abrasive use. The microstructure was studied extensively by electron microscopy methods and by electron and x-ray diffraction. The hardness, stiffness, and toughness were measured by indentation methods. Seeding of the gel with small additions of nm-size α-Al2O3 grains resulted in enhanced α-Al2O3 crystallization, a denser structure and better mechanical properties. The best Ni-alumina gel specimens had hardnesses and stiffnesses comparable to successful abrasive products and even better fracture toughnesses.

UR - http://www.scopus.com/inward/record.url?scp=0022132812&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022132812&partnerID=8YFLogxK

U2 - 10.1016/0025-5408(85)90093-5

DO - 10.1016/0025-5408(85)90093-5

M3 - Article

AN - SCOPUS:0022132812

VL - 20

SP - 1191

EP - 1205

JO - Materials Research Bulletin

JF - Materials Research Bulletin

SN - 0025-5408

IS - 10

ER -

Access to Document

10.1016/0025-5408(85)90093-5