The spouted bed chemical vapor deposition (CVD) technique have been successfully applied to prepare hollow spheres from core‐shell structures. The prepared SiC hollow spheres (SiC‐HS) showed the desired characteristic, such as pure phase (β‐SiC), uniform and concentrated distribution of diameter and sphericity. The flexibility of this method allows for independent control of the diameter, shell thickness and microstructures of the SiC hollow spheres. In particular, it is demonstrated that the precursor of SiC was carried by different carrier gas (hydrogen or argon), SiC‐HS with porous or dense shells can be obtained. The porous SiC‐HS have high density of stacking faults, which indicates that it can be used as photocatalytic materials. The dense SiC‐HS with high density (99%TD) exhibits excellent mechanical properties (average Young's modulus of 410 GPa and hardness of 42 GPa), and it can be used as fusion ignition target and encapsulation vessels as well. Through using different precursor, the spouted bed CVD technique used here could be generally adopted to synthesize other types (eg other carbides or complex oxides) of hollow spheres.

中文翻译：

---

从核壳结构高度控制制备陶瓷空心球的通用方法

喷射床化学气相沉积（CVD）技术已成功应用于由核-壳结构制备空心球。制备的SiC空心球（SiC‐HS）具有所需的特性，例如纯相（β‐SiC），直径和球形度的均匀且集中分布。这种方法的灵活性允许独立控制SiC空心球的直径，壳厚度和微观结构。特别是，证明了SiC的前体是由不同的载气（氢气或氩气）携带的，可以获得具有多孔或致密壳的SiC-HS。多孔SiC-HS具有高密度的堆垛层错，这表明它可用作光催化材料。高密度（99％TD）的致密SiC-HS表现出优异的机械性能（平均Young' 模量为410 GPa，硬度为42 GPa），也可用作聚变点火靶和封装容器。通过使用不同的前体，通常可以采用此处使用的喷射床CVD技术来合成其他类型的中空球体（例如，其他碳化物或复合氧化物）。