技术陶瓷在其化学和机械性能的广泛电子和工程应用中受到青睐。与金属相比，它们的压缩性更强，尤其是在较高的温度下，它们具有良好的热稳定性（即，热膨胀系数低）和良好的热电阻率。它们也很难，并且具有出色的维度稳定性。 结果，技术陶瓷的应用程序清单漫长而多样，包括：
- Aerospace engine blades, rings and valve components
- 工业泵轴承
- 切割工具和死亡部分
- Medical instruments
- 电子行业的广泛用途是基材和专业真空组件
陶瓷-MeTal键合For many applications it is often necessary to join ceramic to metal to create the finished part. Ceramic-metal bonding is one of the biggest challenges that has faced manufacturers and users over the years because of the inherent differences in the thermal expansion coefficients of the two types of materials. Various methods are available including mechanical fasteners, friction welding and adhesive bonding but by far the most widely used and effective method for creating a leak-tight, robust joint between ceramic and metal is by brazing. This starts with the chemical bonding ‘metallisation’ of the ceramic to create a wettable surface on the ceramic, on which braze alloy will flow between the two components during the brazing process. 摩根高级材料欧洲杯足球竞彩is a world leader in the design and manufacture of metallised ceramic components. Expert teams at its European and US Sites are involved in production of custom parts for customers all over the world. Applications range from very small volume production runs of high value components for special projects, to high-volume manufacture of precision designs – as demonstrated by the following case studies:
- 在提取的质子束设备中的组件真空密封件
- Vacuum electronic devices
案例分析1：真空密封和提取的质子束设备ISIS是ISIS，位于英国牛津郡CCLRC Rutherford Appleton实验室的世界一流的中子源，最近委托了Morgan Advanced Materials的一系列高度专业化的金属化陶瓷组件，这是建立第二个目标站的主要扩展项目的一部分（TS欧洲杯足球竞彩-2）。 组件是仪器监测提取的质子束（EPB）强度的基本部分。在第一个目标站使用的陶瓷真空管用辅导电线密封，但经验证明，如果受到干扰，它们变得不可靠。金属化的陶瓷提供了一种解决方案，该解决方案在设计非常紧密的公差内提供了100％可靠的真空密封 工程挑战有两个关键挑战。首先是提出设计和制造过程，该过程将产生强大的，高的完整性真空密封（泄漏率10-8MBAR l/s）横跨大型组件（直径200mm）。第二个是解决管子氧化铝陶瓷及其低碳钢法兰之间热量差异的问题。此外，由于项目的性质，设定了非常严格的规格，以针对组件的物理尺寸和清洁度。 陶瓷金属粘结溶液ISIS组件长158毫米长，两个镀镍的低碳钢法兰直径为240mm，由预先形成的钻石氧化铝陶瓷绝缘子彼此绝缘。为了确保组件的封闭性完整性，将陶瓷在850ºC的氢/氮炉中腌制到由镍铁钴钢制成的两个法兰，因为它为陶瓷提供了最佳的热膨胀匹配。通过施加在1400°C烧结的莫利山加涂层，然后将镍层电镀来实现此过程。然后将陶瓷/金属悬挂的子组件焊接到具有不锈钢界面的碳钢法兰上，并加工到最终尺寸。 The order from ISIS was for 13 components, supplied by the end of 2006. As is usually the case with this sort of project, there isn’t the time or budget available to produce a prototype to refine the process – so it relied heavily on the experience and expertise of the specialist team to get it right first time. Working together, problems were solved as they arose and all the components have now been delivered. Construction of TS-2 began in July 2003 and first neutron production is scheduled for June 2007. 案例分析2：真空电子设备对于另一个客户，摩根高级材料制造商将用于连续波和脉冲雷达系统的真空电子设备（欧洲杯足球竞彩VEDS）的金属陶瓷组件（VEDS）（例如用于战斗机飞机）。 工程挑战在这里，挑战是推动材料的性能信封，以满足行业对更高频率的需求。欧洲杯足球竞彩这意味着较小的组件具有与较大的表亲相同的物理特性，并要求进行非常高的精确工程和近距离控制以确保整个生产的一致性。 例如，这样制作的最小部分是一个圆柱体，内径仅为0.2英寸。内表面在0.007 - 0.0012英寸以内，将内表面的厚度耐受性非常紧。 陶瓷金属粘结溶液所使用的金属化过程基于（mo-mn）钼 - 甲状腺菌类耐火墨系统，由摩根高级材料内部开发，并与特定的高纯度匹配欧洲杯足球竞彩氧化铝陶瓷身体以确保一致的高强度键。MO-MN金属化键与陶瓷中的玻璃相的玻璃相形成键。金属化的表面接收镍的二级涂层，以密封并提高润湿性，以使后来腌制。 结论Morgan Advanced材欧洲杯足球竞彩料满足了各种应用中高性能关键组件的需求。通过详细了解陶瓷金属键合技术，例如金属化工艺，设计师和制造商可以更好地设计这些关键组件。 The joining of ceramics to metals creates its own engineering challenges that require specialist expertise. Morgan Advanced Materials is a world leader in the metallisation of ceramics. Its engineering teams in US and Europe have worked with customers all over the world to provide high integrity solutions for components of all sizes, shapes and specifications. |