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nitride powders

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Published: 01 November 1995
Fig. 1 Process flow for silicon nitride powder milling More
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005738
EISBN: 978-1-62708-171-9
... plasma-sprayed abradable powders. Three classic examples of flame spray abradables are nickel-graphite powders, NiCrAl-bentonite powders, and NiCrFeAl-boron nitride powders. The article provides information on various abradable coating testing procedures, namely, abradable incursion testing; aging...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006052
EISBN: 978-1-62708-175-7
... Abstract This article discusses the methods and procedures used to extract, purify, and synthesize tungsten carbide powder, metal, and other refractory carbide/nitride powders used in hard metal production. Selection of powders, additives, equipment, and processes for making ready-to-press hard...
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Published: 01 January 1994
Fig. 6 Powder diffraction standard card for stoichiometric titanium nitride More
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001283
EISBN: 978-1-62708-170-2
... 850 and 1500 °C (1560 and 2730 °F) ( Ref 40 ) An amorphous silicon nitride powder produced by laser CVD from halogenated silanes and ammonia with an inert sensitizer such as SF 6 ( Ref 41 ) Aluminum nitride produced from aluminum alkyl, and magnesium oxide produced from magnesium vapor and O 2...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005773
EISBN: 978-1-62708-165-8
... of chromium, iron, nitrogen, and carbon in chromium nitride coatings formed on preliminarily nitrided H13 by low-temperature chloride baths with the addition of 20 wt% Cr powders. Coating temperature: 570 °C (1060 °F); time: 8 h. Preliminary nitriding in salt bath: 570 °C (1060 °F); time: 3.5 h Fig. 3...
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Published: 01 August 2013
Fig. 17 Cross section of the diffusion zone of a nitrided α-Fe specimen. The specimen was powder nitrided (see the ?Introduction? of this article) in a box (for 8 h at 545 °C, or 818 K; Ref 3 ) and thereafter very slowly cooled, leading to relatively coarse γ′ and α″ iron nitrides (the small More
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Published: 01 August 2013
Fig. 2 In-depth variation of x-ray intensity of chromium, iron, nitrogen, and carbon in chromium nitride coatings formed on preliminarily nitrided H13 by low-temperature chloride baths with the addition of 20 wt% Cr powders. Coating temperature: 570 °C (1060 °F); time: 8 h. Preliminary More
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Published: 01 August 2013
Fig. 9 Cross-sectional view of chromium nitride coatings formed on 1045 by low-temperature chloride baths with the addition of 20 wt% Cr powders. (a) Optical observation of polished cross section. Coating temperature: 570 °C (1060 °F), time: 8 h; preliminary nitriding in salt bath: 570 °C More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001457
EISBN: 978-1-62708-173-3
... sintering. Reaction-bonded silicon nitride is fabricated by the nitridation of a compact of silicon powder that has been formed into the desired shape by a process such as isostatic pressing, slip casting, or injection molding. Reaction-sintered silicon carbide is fabricated by exposing a compact of silicon...
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Published: 01 August 2013
Fig. 13 Effect of amount of chromium powders in chloride baths on thickness of chromium nitride coatings formed in low-temperature chloride baths. Coating temperature: 570 °C (1060 °F); time: 8 h. Salt bath nitriding: 570 °C; time: 3.5 h More
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Published: 01 January 2002
Fig. 29 Examples of strength-limiting defects in ceramics. (a) Silicon inclusion in reaction-bonded silicon nitride. (b) Powder agglomerate in sintered silicon carbide. (c) Machining damage in hot pressed silicon nitride. SEM; picture widths (a) ∼150 μm. (b) ∼300 μm, (c) ∼150 μm. Source: Ref More
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005971
EISBN: 978-1-62708-168-9
... Abstract Powder metallurgy (PM) processes include press and sinter hardening, metal injection molding, powder forging, hot isostatic pressing, powder rolling, and spray forming. This article provides an overview of PM processing methods and general considerations of heat treatment of PM parts...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006118
EISBN: 978-1-62708-175-7
... Abstract This article describes the sintering behavior of austenitic, ferritic, and martensitic stainless steels. It presents different sintering schedules that are selected by Metal Powder Industries Federation (MPIF). The article provides information on the equipment and atmospheres used...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006417
EISBN: 978-1-62708-192-4
... steel abrasion wear adhesion wear corrosion wear contact fatigue wear surface treatment carburizing nitriding plasma nitriding oxidation boriding plating chemical vapor deposition physical vapor deposition grindability powder metallurgy TOOLS STEELS are carbon, alloy, and high-speed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003054
EISBN: 978-1-62708-200-6
... Abstract Sintering provides the interparticle bonding that generates the attractive forces needed to hold together the otherwise loose ceramic powder mass. It also improves hardness, strength, transparency, toughness, electrical conductivity, thermal expansion, magnetic saturation, corrosion...
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Published: 01 August 2013
Fig. 24 Effect of addition of graphite powders on chromium coating stability in low-temperature salt bath chromium nitride coating. CPS, counts per second More
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Published: 31 August 2017
Fig. 28 Hardness and toughness of cutting tool materials. PCD, polycrystalline diamond; DLC, diamond-like carbon; PCBN, polycrystalline cubic boron nitride; PM HSS, powder metallurgy high-speed steel. Source: Ref 29 More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006113
EISBN: 978-1-62708-175-7
... in this respect: because the reaction between carbon and the oxygen present in the powder is rapid at high temperatures, both carbon and oxygen are efficiently removed from the part. Nitride Formation The limit of solubility of nitrogen in most stainless steels is approximately 1500 ppm at room temperature...
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Published: 01 August 2013
Fig. 3 Cross-sectional micrographs of two aluminum-silicon/hexagonal boron nitride (hBN) coatings. Powders have the same chemistry and similar overall particle size distributions, but when sprayed with a plasma gun, they show different coating microstructures. The main difference More