Under extreme working conditions such as high temperature, strong electric and magnetic fields and acidic or basic environments, ceramic springs offer a clear advantage over conventional steel springs. In this study, a tailored grade of silicon nitride ceramic was characterized as spring material. The basic characterization was complemented with component tests. Bend bars, helical springs and conical disk springs were manufactured and tested under various loading scenarios.

Manifested by the smallest effective volume of the three tested geometries, helical springs showed the highest fatigue strength. Nevertheless, the complexity involved in manufacturing helical springs pertaining to their geometrical features resulted in a relatively large scatter in fatigue data. The results pointed out the importance of proper design and machining of the contact surface edges in disk springs, which bear the highest stresses.

This work demonstrates the potential of producing ceramic springs with broad applicability and sufficient strength and fatigue resistance.

在高温，强电场和强磁场以及酸性或碱性环境等极端工作条件下，陶瓷弹簧比常规钢弹簧具有明显的优势。在这项研究中，量身定制的氮化硅陶瓷是弹簧材料。基本特征得到组件测试的补充。弯曲杆，螺旋弹簧和圆锥形碟形弹簧在各种负载情况下进行了制造和测试。

螺旋弹簧通过三种测试几何形状中最小的有效体积显示出最高的疲劳强度。然而，由于螺旋弹簧的几何特征而制造螺旋弹簧所涉及的复杂性导致疲劳数据中的散布相对较大。结果表明，对承受最高应力的碟形弹簧中的接触面边缘进行适当的设计和加工非常重要。

这项工作证明了生产具有广泛适用性，足够的强度和抗疲劳性的陶瓷弹簧的潜力。