سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

Oxidation Behavior of Spark Plasma Sintered HfB2-SiC-Graphite Composite at 1400 °C

Publish Year: 1401
Type: Journal paper
Language: English
View: 214

This Paper With 9 Page And PDF Format Ready To Download

Export:

Link to this Paper:

Document National Code:

JR_ACERPT-8-1_002

Index date: 11 June 2022

Oxidation Behavior of Spark Plasma Sintered HfB2-SiC-Graphite Composite at 1400 °C abstract

The current study aims to fabricate the HfB2-SiC-graphite composite through Spark Plasma Sintering (SPS) method at 1950 °C for 10 min. The oxidation behavior of the prepared composites was investigated at 1400 °C and different times of 4, 8, 12, and 16 h. In addition, the weight changes and thickness of the generated oxide layer were measured. The relative density, hardness, toughness, and strength of the composite made through the SPS method were calculated as 99.39 %, 10.16 GPa, 4.73 MPa.m1/2, and 464.12 MPa, respectively. The oxidation kinetic results of the composite exhibited linear-parabolic behavior. The chemical reaction during the oxidation process controlled the oxidation rate after 8 h. Followed by oxidation for more 12 h, the thickness of the oxide scale slowly increased, thus following a parabolic trend as a result of a decrease in the oxygen diffusion when HfOxCy and SiOxCy phases were formed. Therefore, it was concluded that the oxygen diffusion rate could control the oxidation process.

Oxidation Behavior of Spark Plasma Sintered HfB2-SiC-Graphite Composite at 1400 °C Keywords:

HfB2-SiC-Graphite Composite , Spark plasma sintering (SPS) , Ultra-High Temperature Ceramic (UHTC) Oxidation Behavior , Kinetic

Oxidation Behavior of Spark Plasma Sintered HfB2-SiC-Graphite Composite at 1400 °C authors

Mohammad Sakvand

MSc Student , Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Semnan, Iran

Maryam Shojaie-Bahaabad

Assistant Professor, Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Semnan, Iran

Leila Nikzad

Assistant Professor, Department of Ceramics, Materials, and Energy Research Center (MERC), Meshkindasht, Alborz, Iran

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
Shojaie-Bahaabad, M., Hasani-Arefi, A., “Ablation properties of ZrC-SiC-HfB۲ ceramic with ...
نمایش کامل مراجع