The effects of powder mixtures of W–Mo and Zr–Ti combined with sintered solid solution TiC–ZrC during spark plasma sintering of compositions at a pressing load of 60 MPa in the range 1200 – 1600°C on the phase composition, microstructure, grain sizes of crystalline phases, relative density, linear shrinkage, physical-mechanical properties, and linear correlation of elasticity modulus and fracture toughness of mullite–β-Si₃N₄–c-BN samples are shown in the present work. Synthesized powders of β-Si₃N₄ and c-BN are characterized by extensive crystallization of β-Si₃N₄ and c-BN. Solid solution TiC–ZrC sintered by a spark-plasma method at 1800°C shows roughly equal crystallization of (Zr,Ti)C and (Ti, Zr)C and a nonuniform and incompletely sintered crystalline microstructure. Samples with W–Mo and Zr–Ti mixtures sintered in the range 1200 – 1600°C show extensive mullitization; active crystallization of β-Si₃N₄, (Ti,Zr)C, solid solutions Mo, Wand W, Mo, and β-Zr,Ti; and lower crystallization of c-BN, (Zr,Ti)C, and β-Ti,Zr. The W–Mo mixture in the range 1400 – 1600°C favors the formation of a more uniformly and densely sintered microstructure of the ceramic phase; roughly round-shaped particles of solid solutions Mo, W and W, Mo in the metallic phase; more reinforced boundary areas of ceramic-metallic and metallic phases; and polydisperse grain compositions of crystalline phases. As a result, the composition with the W–Mo mixture sinters more uniformly and gradually in the range 1200 – 1600°C with the corresponding sample showing greater values of physical-mechanical properties, higher cracking resistance, and a greater linear correlation of the elasticity modulus and fracture toughness.

W-Mo和Zr-Ti粉末混合物与烧结固溶体TiC-ZrC的组合，在1200-1600°C范围内在60 MPa的压力下对成分进行火花等离子烧结期间，对相组成，微观结构，晶粒的影响晶相，相对密度，线性收缩，物理-机械性能和弹性模量的线性相关和莫来石-β-Si组成的断裂韧性的大小₃ ñ ₄ - ç -BN样本被示出在目前的工作。的合成的粉末β型Si ₃ Ñ ₄和Ç -BN的特征在于广泛的结晶β型Si ₃ Ñ ₄和Ç-BN。通过火花等离子法在1800°C烧结的固溶TiC–ZrC表现出（Zr，Ti）C和（Ti，Zr）C大致相同的结晶度，以及不均匀且不完全烧结的晶体微观结构。在1200 – 1600°C范围内烧结的W-Mo和Zr-Ti混合物的样品表现出广泛的乳化作用。的活性结晶β型Si ₃ Ñ ₄的（Ti，Zr）的C，固溶体的Mo，魔杖W，Mo和β-锆，钛; 和降低的结晶Ç-BN，（Zr，Ti）C和β-Ti，Zr。W-Mo混合物在1400 – 1600°C的温度范围内有利于形成更均匀且致密的陶瓷相烧结组织。金属相中的固溶体Mo，W和W，Mo的大致圆形颗粒；陶瓷-金属和金属相的边界区域得到了增强；和结晶相的多分散晶粒组成。结果，含W-Mo混合物的成分在1200 – 1600°C的范围内更均匀且逐渐地烧结，相应的样品显示出更大的物理机械性能值，更高的抗裂性以及更大的弹性线性相关性模量和断裂韧性。