Combustion Synthesis: Novel Routes to Novel Materials

Combustion Synthesis of Nitrogen Ceramics and Nanosized Ceramic Powders

Author(s): '> Jiangtao Li

Pp: 33-54 (22)

DOI: 10.2174/978160805155711001010033

* (Excluding Mailing and Handling)

Abstract

The nitriding combustion synthesis of nitrogen ceramics has long been an important research area and has found many industrial applications in regarding to the synthesis of a wide range of nitride powders in the past two decades. The energy saving and especially time-saving feature makes the infiltration combustion synthesis technique very attractive in the cost effective fabrication of nitride ceramics. That is why there are continuous efforts devoted to the understanding of the reaction mechanism as well as to the optimizing of the processing parameters on the synthesis of nitride ceramics. In this chapter, the progress on the combustion synthesis of nitride ceramic powders was summarized. It was found that the remarkable achievements obtained in this area could be classified as two aspects. The first aspect is the development of up-scalable cost-effective fabrication process, which follows a direction of decreasing the synthesis pressure, that is, the minimum nitrogen pressure required for implementing the combustion synthesis of nitride ceramics has been decreased from high pressure to normal pressure, and up to now, the nitride ceramic powders could even be synthesized in air. The other aspect is the development of high performance nano-sized nitride powders by combustion synthesis method which showed integrated functional and structural properties. For instance, the Re-doped SiAlON powders could be used as new phosphors for LED lighting and the nano and/or sub-micrometer sized α/β-SiAlON could be densified directly without using any sintering additives. Finally, the regularities for the large-scale synthesis of nitride powders were discussed, and the properties of the as-synthesized nitride powders were systematically characterized.

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      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316870080 and j.to_ip >=316870080 )) and ((j.from_date <= 1739835011 and j.to_date >= 1739835011 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 1615) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316870080 and j.to_ip >=316870080 )) and ((j.from_date <= 1739835011 and j.to_date >= 1739835011 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 1615) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 316870080 and j.to_ip >=316870080 )) and ((j.from_date <= 1739835011 and j.to_date >= 1739835011 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 1615)
      940μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 907 and `b`.`banner_from_date` <= 1739835011 and `b`.`banner_to_date` >= 1739835011 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.6msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 907
      • 3: 1739835011
      • 4: 1739835011
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='f25c5ce1657291093f0fd2045ebdb515'
      370μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Keywords
    1Keywords.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        Sv232siUhwAomPcJULemFdg1xcNqnXtWiqTf32rh
        uc_cart_id
        f25c5ce1657291093f0fd2045ebdb515
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/1615" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/1615
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
        0 of 0
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        request_cookies
        0 of 0
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        response_headers
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        ClearShow all
        Date ↕MethodURLData
        #12025-02-17 23:30:11GET/chapter/1615112193