Microstructure evolution and mechanical properties of the TiB2-TiC-SiC composite ceramic and Nb brazed joint

Y Wang, XY Zheng, YR Wei, ZW Yang - Journal of Manufacturing Processes, 2023 - Elsevier
A high-density TiB 2-TiC-SiC composite ceramic was prepared through hot pressing. The
average flexural strength, fracture toughness, and hardness of the sintered composite …

The Al–B–Nb–Ti system: I. Re-assessment of the constituent binary systems B–Nb and B–Ti on the basis of new experimental data

VT Witusiewicz, AA Bondar, U Hecht, S Rex… - Journal of alloys and …, 2008 - Elsevier
Aiming to obtain a reliable description of the quaternary Al–B–Nb–Ti system, the
thermodynamic descriptions of the constituent binary systems B–Nb and B–Ti are revised by …

Toughening mechanism for Ni–Cr–B–Si–C laser deposited coatings

I Hemmati, V Ocelík, JTM De Hosson - Materials Science and Engineering …, 2013 - Elsevier
Laser deposited coatings were made from Colmonoy 69 Ni–Cr–B–Si–C alloy and Nb-
modified Colmonoy 69 using laser cladding with powder injection. Addition of Nb was done …

In situ synthesis of NbB2–NbC composite powders by milling-assisted carbothermal reduction of oxide raw materials

Ö Balcı, D Ağaoğulları, D Ovalı, ML Öveçoğlu… - Advanced Powder …, 2015 - Elsevier
NbB 2–NbC composite powders were fabricated at reduced temperatures via the
carbothermal route by mechanical milling of Nb 2 O 5, B 2 O 3 and C powder blends. Both …

Effect of boron addition on the oxidation resistance of silicide protective coatings: A focus on boron location in as-coated and oxidised coated niobium alloys

L Portebois, S Mathieu, Y Bouizi, M Vilasi - Surface and Coatings …, 2014 - Elsevier
Multilayered silicide coatings are developed to protect Nb alloys from high temperature
oxidation. Their efficiency is improved using a second halide-activated pack-cementation …

Synthesis of niobium borides by powder metallurgy methods using Nb2O5, B2O3 and Mg blends

Ö Balcı, D Ağaoğulları, ML Öveçoğlu… - Transactions of Nonferrous …, 2016 - Elsevier
Niobium boride powders having NbB, NbB 2 and Nb 3 B 4 phases in various amounts and
single phase NbB powders were successfully synthesized by using powder metallurgy …

Thermodynamic analysis of the Fe–Nb–B ternary system

K Yoshitomi, Y Nakama, H Ohtani, M Hasebe - ISIJ international, 2008 - jstage.jst.go.jp
A thermodynamic analysis of the Fe–Nb–B ternary system has been carried out by
estimating the unknown thermodynamic properties of various borides and solid solutions …

Effect of sintering techniques on the microstructure and mechanical properties of niobium borides

Ö Balcı, D Ağaoğulları, F Muhaffel, ML Öveçoğlu… - Journal of the European …, 2016 - Elsevier
This study reports on the consolidation of niobium boride powders by cold
pressing/pressureless sintering (PS, with or without Co addition) and spark plasma sintering …

Effects of SiC and SiC-GNP additions on the mechanical properties and oxidation behavior of NbB2

I Akin, BC Ocak, F Sahin, G Goller - Journal of Asian Ceramic …, 2019 - Taylor & Francis
ABSTRACT Monolithic NbB2, NbB2-SiC, and NbB2-SiC-GNP samples were produced by
spark plasma sintering (SPS), and the effects of additives on the mechanical and thermal …

Thermodynamic modeling of the Nb–B system

RM Peçanha, F Ferreira, GC Coelho, CA Nunes… - Intermetallics, 2007 - Elsevier
In the present work, the Nb–B binary system was thermodynamically optimized. The stable
phases in this system are BCC (niobium), Nb3B2, NbB, Nb3B4, Nb5B6, NbB2, B (boron) …