Improvement of sound absorption and flexural compliance of porous alumina-mullite ceramics by engineering the microstructure and segmentation into topologically interlocked blocks

Anisotropic properties of highly textured porous alumina formed from platelets

“…Porous ceramics have shown promise as functional materials such as filters [1][2][3], catalysts [4], insulators [5][6][7][8][9], sound absorbing materials [10,11], bioceramics [12][13][14], and lightweight refractory materials [15,16]. Furthermore, most porous ceramics are morphologically uniform, and have the same properties in all directions.…”

Manufacture and Mechanics of Topologically Interlocked Material Assemblies

“…The damage tolerance was found to be further enhanced in the tensegrity-type TIM systems where self-healing type processes have been documented [53]. Contact interactions bring a range of nonlinear features into the dynamic response, and such properties have been exploited in acoustic applications [36,37]. Architectured such material solutions often enable new multifunctionalities where materials are not only selected for their mechanical properties but also for functional properties [1,38].…”

“…Recently, Estrin and coworkers [34] demonstrated the control of TIM system stiffness through active control of the internal constraint, while Khandelwal et al [35] showed the adaptive characteristics of TIMs to energy absorption based on control of the external constraint. Carlesso et al [36,37] illustrated that TIM systems can possess enhanced sound absorption, based on the dynamic contact processes among basic building blocks.…”

Деформация И Разрушение Корундовой Керамики С Многоуровневой Поровой Структурой

“…Блоки могут быть скреплены между собой фазой связующего, или благодаря особой геометрии и расположению блоков. При этом слабые границы раздела между блоками обусловливают отклонение распространяющейся трещины с увеличением энергии деформирования без катастрофического разрушения [12].…”