Ceramics based on silicon nitride: A review

Zhuravleva, N. V.; Лукин, Е. С.

doi:10.1007/bf01281288

Cited by 8 publications

(6 citation statements)

References 14 publications

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“…Silicon nitride (Si 3 N 4 ) has been treated in many textbooks and review articles as an important material for several applications like hardening of chlorine gas tubes, cutting ceramics, parts for car engines or coating material for the cantilever in atomic force microscopy . Several strategies to produce Si 3 N 4 have been established, e.g., from silicon, silicon dioxide or magnesium silicide as well as from silicon diimide gel via a nonaqueous sol–gel route.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Aniline Formaldehyde Resin/Polysilazane Hybrid Materials by Twin Polymerization

Kaßner

Knoblauch

Seifert

et al. 2016

Macro Chemistry & Physics

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Nanostructured aniline formaldehyde resin/polysilazane hybrid materials are produced by twin polymerization of 2,2′‐spirobi[3,4‐dihydro‐1H‐1,3,2‐benzodiazasiline] (1). An alternative synthetic concept for similar hybrid materials, the apparent twin polymerization, is employed by using the combination of the deficient twin monomer tetrakis(phenylamino)silane (2) with hexamethylenetetramine (HMTA). Both processes for the synthesis of polysilazane hybrid materials occur under volatilization of byproducts such as ammonia or aromatic nitrogen compounds. The thermal properties of the twin monomer 1 and the combination of 2/HMTA, respectively, are investigated by differential scanning calorimetry and thermogravimetric analysis. Aniline‐formaldehyde resin/polysilazane hybrid materials are characterized by solid state 13C‐ and 29Si‐NMR spectroscopy and transmission electron microscopy. The inorganic network remains hydrolyzable and can be functionalized after polymerization at temperatures below 500 °C due to residuary reactive Si−N bonds. Thermal treatment at 1100 °C leads to the formation of amorphous Si/C/N hybrid materials.

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Section: Introductionmentioning

confidence: 99%

Nanostructured Aniline Formaldehyde Resin/Polysilazane Hybrid Materials by Twin Polymerization

Kaßner

Knoblauch

Seifert

et al. 2016

Macro Chemistry & Physics

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“…For example, materials of the system Si 3 N 4 -ZrO 2 are distinguished by high resistance to oxidation and heat-resistance [1,2]; materials of the system Si 3 N 4 -TiN are electrical insulators or conductors, depending on the titanium nitride content [3].…”

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confidence: 99%

“…TG(1,4 ) and DSC (2, 3 ) curves of complex thermal analysis of ferro-silicon powder (1, 2 ) and powder of ferro-silicon with 30% ilmenite added (4, 3 ) in nitrogen.…”

mentioning

confidence: 99%

Self-propagating high-temperature synthesis of silicon-nitride ceramic mix using ferro-silicon and ilmenite

2011

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“…Ultrafine and nano-size silicon nitride powders [9,10] and sintering activators, often aluminum and yttrium compounds [11,12], are used to obtain a high-density ceramic.…”

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confidence: 99%

Ceramic made from SHS silicon nitride powder

2007

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A ceramic made from a powder of silicon nitride which is obtained by self-propagating high-temperature synthesis is investigated. Yttrium-aluminum garnet and mullite are used as sintering aids. The strength of the material obtained reaches 540 MPa.When new technical objects are created, as a rule, there also arises a need for new materials, including building materials. The world production of industrial ceramic articles, which are used in a number of sectors of industry as highperformance materials, has grown by one-third in terms of cost from 1999 to 2002 [1]. In the last 20 years new ceramic building materials based on silicon nitride and carbide have been developed and are widely used in developed countries. Investigations have shown that with respect to a complex of properties these materials are greatly superior to other types of ceramic materials. Silicon nitride and carbide and materials based on them have high working temperatures (up to 1700°C), durability, chemical inertness, and high strength and crack-resistance [2], and they have found extensive applications in aerospace, metallurgical, chemical, electronic, and other areas [3]. Materials based on silicon nitride are used in the manufacture of valves for internal combustion engines, turbosupercharger rotors, shut-off fixtures, bearings, cutting tools, seals, and other articles.At the same time intensive research on further improving the technology for obtaining materials with the objective of optimizing the phase composition and microstructure of monolithic ceramic, developing composite structures, and so on is continuing [4]. A great deal of attention is being devoted to different formation methods: cold and hot slip casting (pressure casting), sintering without applying pressure and under elevated pressure, hot pressing, and hot isostatic pressing. Mass production of articles with complex shapes, high physicochemical properties, isotropic structure, and requiring minimal mechanical working are now on the agenda [5 -7].The main problem of obtaining ceramic from silicon nitride is the difficulty of sintering the ceramic [8]. Ultrafine and nano-size silicon nitride powders [9, 10] and sintering activators, often aluminum and yttrium compounds [11,12], are used to obtain a high-density ceramic.Our work was devoted to obtaining a dense ceramic from powder of silicon nitride which is obtained by self-propagating high-temperature synthesis (SHS).Silicon nitride obtained at ISMAN by SHS with a-phase content 95%, specific surface area of the powder 7.4 m 2 /g, and average particle size 1 -2 mm served as the initial material (Fig. 1). The silicon nitride powder contained the following chemical elements besides silicon (%): 38.5 nitrogen, 1.8 oxygen, and 0.05 iron. The integral and differential curves of the grain composition of the powder are presented in Fig. 2.Silicon nitride obtained by plasma chemical synthesis, containing a mixture of a-and b-phases, with specific surface area of the powder 20 m 2 /g and average particle size less than 0.1 mm, was also...

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Ceramics based on silicon nitride: A review

Cited by 8 publications

References 14 publications

Nanostructured Aniline Formaldehyde Resin/Polysilazane Hybrid Materials by Twin Polymerization

Nanostructured Aniline Formaldehyde Resin/Polysilazane Hybrid Materials by Twin Polymerization

Self-propagating high-temperature synthesis of silicon-nitride ceramic mix using ferro-silicon and ilmenite

Ceramic made from SHS silicon nitride powder

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