Boron carbide nanoparticles for high-hardness ceramics: Crystal lattice defects after treatment in a planetary ball mill

Annenkov, Mikhail; Бланк, В. Д.; Kulnitskiy, B.A.; Larionov, Konstantin V.; Ovsyannikov, D. A.; Perezhogin, I. A.; Popov, M.; Сорокин, Павел Б.

doi:10.1016/j.jeurceramsoc.2016.12.001

Cited by 27 publications

(35 citation statements)

References 29 publications

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“…The twins along the {10-11} h plane (in hexagonal coordinates) are similar to the deformation and growth twins observed in other previous works [13]. This is illustrated in Figure 2.…”

Section: Resultssupporting

confidence: 86%

Peculiarities of the Twinning in Silicon during Ball Milling in the Presence of Two Different Materials

et al. 2018

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The structure of silicon, along with mixtures of silicon and boron carbide (B 4 C) powders and silicon and diamond powders with different proportions after mechanoactivation, has been studied by transmission electron microscopy (TEM) methods. It was shown that silicon and boron carbide experience twinning according to the known twinning mechanisms. In addition to the initial phase with a diamond lattice, the particles of two other phases were detected for silicon, including: the Kasper phase (SiIII) and lonsdaleite (SiIV). We established that the phase transformations in silicon can happen due to different mechanisms.

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“…The twins along the {10-11} h plane (in hexagonal coordinates) are similar to the deformation and growth twins observed in other previous works [13]. This is illustrated in Figure 2.…”

Section: Resultssupporting

confidence: 86%

Peculiarities of the Twinning in Silicon during Ball Milling in the Presence of Two Different Materials

et al. 2018

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“…Дефекты в карбиде бора, обработанном в планетар-ной мельнице, исследовались в [10]. Была проведена серия экспериментов по изучению дефектов в структуре карбида бора после обработки в планетарной мельнице в составе композита с Si и чистого карбида бора при различном времени размола [10].…”

Section: обсуждение результатовunclassified

“…Была проведена серия экспериментов по изучению дефектов в структуре карбида бора после обработки в планетарной мельнице в составе композита с Si и чистого карбида бора при различном времени размола [10]. Было обнаружено, что обработка карбида бора в планетарной мельнице ведет к измельчению частиц и образованию трещин по плоскостям {2021}.…”

Section: обсуждение результатовunclassified

“…Таким образом, в отличие от [10] в настоящей работе трещины в образцах карбида бора, обработанных в алмазных наковальнях со сдвигом, в основном парал-лельны плоскостям {1011} и {1012}, тогда как в [10] они лежали в плоскостях {2021} (а в плоскостях {1011} происходило двойникование).…”

Section: обсуждение результатовunclassified

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Особенности структуры карбида бора после приложения сдвиговых деформаций под давлением до 55 GPa

Анненков¹,

Кульницкий²,

Пережогин³

et al. 2017

Физика Твердого Тела

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Методами просвечивающей электронной микроскопии исследованы структурные особенности карбида бора, обработанного в камере высокого давления типа алмазных наковален со сдвигом в диапазоне давлений 25−55 GPa. Показано, что такая обработка приводит к образованию трещин преимущественно по плоскостям {1011} и {1012}, а также возникновению политипов в плоскостях {1011} и деформационных полос в плоскостях {1012}.

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“…Ball‐milling is a simple and established strategy for breaking down bulk materials to nano‐size. [ 58,59 ] Defect formation over large scales leads to an amorphization of crystalline solids. [ 60 ] Still, the “molecular” processes during ball milling are not well understood, because standard in situ characterization tools for solids in the ball milling environment require crystalline analytes.…”

Section: Introductionmentioning

confidence: 99%

Insights into the In Vitro Formation of Apatite from Mg‐Stabilized Amorphous Calcium Carbonate

Opitz

Besch

Panthöfer

et al. 2020

Adv Funct Materials

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A protein-free formation of bone-like apatite from amorphous precursors through ball-milling is reported. Mg 2+ ions are crucial to achieve full amorphization of CaCO 3. Mg 2+ incorporation generates defects which strongly retard a recrystallization of ball-milled Mg-doped amorphous calcium carbonate (BM-aMCC), which promotes the growth of osteoblastic and endothelial cells in simulated body fluid and has no effect on endothelial cell gene expression. Ex situ snapshots of the processes revealed the reaction mechanisms. For low Mg contents (<30%) a two phase system consisting of Mg-doped amorphous calcium carbonate (ACC) and calcite "impurities" was formed. For high (>40%) Mg 2+ contents, BM-aMCC follows a different crystallization path via magnesian calcite and monohydrocalcite to aragonite. While pure ACC crystallizes rapidly to calcite in aqueous media, Mg-doped ACC forms in the presence of phosphate ions bone-like hydroxycarbonate apatite (dahllite), a carbonate apatite with carbonate substitution in both type A (OH −) and type B (PO 4 3−) sites, which grows on calcite "impurities" via heterogeneous nucleation. This process produces an endotoxin-free material and makes BM-aMCC an excellent "ion storage buffer" that promotes cell growth by stimulating cell viability and metabolism with promising applications in the treatment of bone defects and bone degenerative diseases.

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Boron carbide nanoparticles for high-hardness ceramics: Crystal lattice defects after treatment in a planetary ball mill

Cited by 27 publications

References 29 publications

Peculiarities of the Twinning in Silicon during Ball Milling in the Presence of Two Different Materials

Peculiarities of the Twinning in Silicon during Ball Milling in the Presence of Two Different Materials

Особенности структуры карбида бора после приложения сдвиговых деформаций под давлением до 55 GPa

Insights into the In Vitro Formation of Apatite from Mg‐Stabilized Amorphous Calcium Carbonate

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