Sintering behavior of nanophase MoSi2 with and without a ZrO2 additive

Qi Tan; Avigdor Zangvil

doi:10.1557/JMR.1999.0361

Sintering behavior of nanophase MoSi₂ with and without a ZrO₂ additive

Qi Tan, Avigdor Zangvil

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

1 Scopus citations

Abstract

The densification of nanophase molybdenum disilicide synthesized by mechanical alloying was studied through pressureless sintering and hot pressing, showing a significant reduction of sintering temperature by the refinement of grain size. Enhancements of densification and fracture toughness of MoSi₂ by grain refinement and by fine ZrO₂ particles were revealed. Highly stabilized microstructure with grain sizes below 100 nm persists to 1350 °C during pressureless sintering. Although bimodal grain distribution (20 to 500 nm) appears in hot-pressed samples, the toughness and hardness are better than those of coarse-grained materials.

Original language	English
Pages (from-to)	2701-2703
Number of pages	3
Journal	Journal of Materials Research
Volume	14
Issue number	7
DOIs	https://doi.org/10.1557/JMR.1999.0361
State	Published - Jul 1999
Externally published	Yes

Access to Document

10.1557/JMR.1999.0361

Cite this

@article{02f763864eb54a148d9756f51c99383c,

title = "Sintering behavior of nanophase MoSi2 with and without a ZrO2 additive",

abstract = "The densification of nanophase molybdenum disilicide synthesized by mechanical alloying was studied through pressureless sintering and hot pressing, showing a significant reduction of sintering temperature by the refinement of grain size. Enhancements of densification and fracture toughness of MoSi2 by grain refinement and by fine ZrO2 particles were revealed. Highly stabilized microstructure with grain sizes below 100 nm persists to 1350 °C during pressureless sintering. Although bimodal grain distribution (20 to 500 nm) appears in hot-pressed samples, the toughness and hardness are better than those of coarse-grained materials.",

author = "Qi Tan and Avigdor Zangvil",

note = "Funding Information: This work is supported by the U.S. Department of Energy, Division of Materials Sciences, under Grant DEFG02-91ER45439. The use of facilities in the Center for Microanalysis of Materials, MRL-UIUC, which is supported by the same grant, is gratefully acknowledged.",

year = "1999",

month = jul,

doi = "10.1557/JMR.1999.0361",

language = "英语",

volume = "14",

pages = "2701--2703",

journal = "Journal of Materials Research",

issn = "0884-2914",

publisher = "Cambridge University Press",

number = "7",

}

TY - JOUR

T1 - Sintering behavior of nanophase MoSi2 with and without a ZrO2 additive

AU - Tan, Qi

AU - Zangvil, Avigdor

N1 - Funding Information: This work is supported by the U.S. Department of Energy, Division of Materials Sciences, under Grant DEFG02-91ER45439. The use of facilities in the Center for Microanalysis of Materials, MRL-UIUC, which is supported by the same grant, is gratefully acknowledged.

PY - 1999/7

Y1 - 1999/7

N2 - The densification of nanophase molybdenum disilicide synthesized by mechanical alloying was studied through pressureless sintering and hot pressing, showing a significant reduction of sintering temperature by the refinement of grain size. Enhancements of densification and fracture toughness of MoSi2 by grain refinement and by fine ZrO2 particles were revealed. Highly stabilized microstructure with grain sizes below 100 nm persists to 1350 °C during pressureless sintering. Although bimodal grain distribution (20 to 500 nm) appears in hot-pressed samples, the toughness and hardness are better than those of coarse-grained materials.

AB - The densification of nanophase molybdenum disilicide synthesized by mechanical alloying was studied through pressureless sintering and hot pressing, showing a significant reduction of sintering temperature by the refinement of grain size. Enhancements of densification and fracture toughness of MoSi2 by grain refinement and by fine ZrO2 particles were revealed. Highly stabilized microstructure with grain sizes below 100 nm persists to 1350 °C during pressureless sintering. Although bimodal grain distribution (20 to 500 nm) appears in hot-pressed samples, the toughness and hardness are better than those of coarse-grained materials.

UR - http://www.scopus.com/inward/record.url?scp=0032630211&partnerID=8YFLogxK

U2 - 10.1557/JMR.1999.0361

DO - 10.1557/JMR.1999.0361

M3 - 文章

AN - SCOPUS:0032630211

SN - 0884-2914

VL - 14

SP - 2701

EP - 2703

JO - Journal of Materials Research

JF - Journal of Materials Research

IS - 7

ER -

Sintering behavior of nanophase MoSi₂ with and without a ZrO₂ additive

Abstract

Access to Document

Other files and links

Fingerprint

Cite this