References

powder

Известия вузов. Порошковая металлургия и функциональные покрытия

Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)

1997-308X2412-8767

НИТУ "МИСИС"

10.17073/1997-308X-2023-2-14-34

powder-784

Research Article

Тугоплавкие, керамические и композиционные материалы

Refractory, Ceramic, and Composite Materials

Влияние легирования танталом на структуру и стойкость к высокотемпературному окислению и абляции композиций в системе ZrB2(HfB2)–SiC. Обзор

Effects of alloying ZrB2(HfB2)–SiC with tantalum on the structure and resistance to high-temperature oxidation and ablation: A review

https://orcid.org/0000-0002-2827-8077

Диденко

А. А.

Didenko

A. A.

Анна Александровна Диденко – кандидат технических наук, доцент кафедры «Инженерная графика».

125993, Москва, Волоколамское шоссе, 4

Anna A. Didenko – Cand. Sci. (Eng.), Assistant Professor of the Department of Engineering Graphics.

4 Volokolamskoe Shosse, Moscow 125993

yurishcheva@yandex.ru

https://orcid.org/0000-0001-8943-2333

Астапов

А. Н.

Astapov

A. N.

Алексей Николаевич Астапов – кандидат технических наук, доцент кафедры «Перс пективные материалы и технологии аэрокосмического назначения», МАИ (НИУ).

125993, Москва, Волоколамское шоссе, 4

Alexey N. Astapov – Cand. Sci. (Eng.), Assistant Professor of the Department of Advanced Materials and Technologies for Aerospace Application.

4 Volokolamskoe Shosse, Moscow 125993

lexxa1985@inbox.ru

https://orcid.org/0000-0002-0919-8442

Терентьева

В. С.

Terentieva

V. S.

Валентина Сергеевна Терентьева – доктор технических наук, профессор кафедры «Перспективные материалы и технологии аэрокосмического назначения», МАИ (НИУ).

125993, Москва, Волоколамское шоссе, 4

Valentina S. Terentieva – Dr. Sci. (Eng.), Full Professor of the Department of Advanced Materials and Technologies for Aerospace Application.

4 Volokolamskoe Shosse, Moscow 125993

k903ter@mai.ru

Московский авиационный институт (национальный исследовательский университет)РоссияMoscow Aviation Institute (National Research University)Russian Federation

2023

05062023

1721434

2023

НИТУ "МИСИС"

https://powder.misis.ru/jour/about/submissions#copyrightNotice

https://powder.misis.ru/jour/article/view/784

Обзор посвящен изучению состояния вопроса в области влияния легирования соединениями тантала на эволюцию структуры, жаростойкость и стойкость к абляции ультравысокотемпературных композиций на основе системы ZrB2(HfB2)–SiC. Проанализировано влияние содержания первичных фаз на структурно-морфологические особенности образующихся оксидных слоев и эффективность их защитного действия. Показано, что положительный эффект от легирования прежде всего связан с увеличением вязкости и термической устойчивости формирующейся стеклофазы, снижением анионной проводимости, частичной стабилизацией решетки ZrO2(HfO2) и образованием на поверхности температуроустойчивых комплексных оксидов типа Zr11Ta4O32 или Hf6Ta2O17. Установлено, что основными причинами отрицательного влияния легирования являются увеличение доли жидкой фазы, снижение сплошности структуры оксидной пленки в результате повреждения зерен ZrO2(HfO2 ) при окислении TaB2 или образования значительного количества газов при окислении TaC, а также появление дополнительных каналов для диффузии кислорода при вертикализации плоских частиц Zr11Ta4O32 или Hf6Ta2O17. Отмечено, что характеристики стойкости к окислению и абляции, а также механизмы, определяющие поведение композиций, неодинаковы для разных легирующих добавок и условий испытаний.

This review presents a comprehensive analysis of the impact of tantalum alloying on the structure, heat resistance, and ablation resistance of ZrB2(HfB2)–SiC ultra-high-temperature composites. The influence of the primary phase content on the effects on the structural and morphological features of the oxide layers and their protective efficiency is analyzed. It is shown that alloying positively affects the composite's behavior by enhancing the viscosity and thermal stability of the glass phase, decreasing anionic conductivity, partially stabilizing the ZrO2(HfO2) lattice, and forming temperature-resistant complex oxides, such as Zr11Ta4O32 or Hf6Ta2O17 on the surface. It has been established that the alloying can have negative effects, including an increase in the liquid phase content, oxide film discontinuity, ZrO2(HfO2) grain damage due to TaB2 oxidation, or a significant amount of gas release due to TaC oxidation, as well as the formation of oxygen diffusion channels during the verticalization of Zr11Ta4O32 or Hf6Ta2O17 platelets. It is essential to note that the oxidation and ablation resistance, as well as the mechanisms driving composite behavior, differ depending on the alloying compounds and test conditions. Overall, this study sheds light on the role of tantalum alloying in enhancing the performance of ZrB2(HfB2)–SiC UHTC and highlights the importance of understanding the underlying mechanisms that govern their behavior.

ультравысокотемпературная керамика (УВТК)жаростойкостьокислениестойкость к абляцииоксидная пленкаборосиликатное стеклотанталмодифицирование

ultrahigh-temperature ceramics (UHTC)heat resistanceoxidationablation resistanceoxide filmborosilicate glasstantalumalloying

Исследование выполнено за счет гранта Российского научного фонда № 22-29-01476, https://rscf.ru/project/22-29-01476/

This study is supported by the Russian Science Foundation grant No. 22-29-01476, https://rscf.ru/project/22-29-01476/

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The authors declare that there are no conflicts of interest present.