Technology and Innovation in China: A case study of single crystal superalloy development for aircraft turbine blades
Description
The rise of China as a global economic and military power has drawn significant attention to its ability to innovate. Emerging Chinese capabilities in science and technology are increasingly viewed as a pathway for transforming China from a follower country into a global leader in innovation. This study examines single-crystal technology used in manufacturing aircraft turbine blades, a critical component for improving the performance of modern jet engines. It assesses China’s ability to apply this knowledge in the production of aircraft engines by comparing its efforts with those of the United States, a pioneer in this domain. Analysis of the evolution of this technology in the US, through patents and publications, suggests that experts would have been aware of its significance in the 1985–1990 period. Given Chinese engineers’ capability in tracking global technological developments, it is likely that this technology was identified early as crucial for China’s aircraft engine programme. The study further reveals that, following challenges in reverse engineering Soviet aircraft and multiple attempts to build capabilities through imports and technology transfers, China initiated major reforms in its R&D infrastructure by the 1980s. These efforts culminated in the development of the WS-10 engine by 1992, although prolonged delays meant it was only qualified in 2005. Notably, the WS-10 did not incorporate single-crystal technology but instead relied on an earlier generation directionally solidified (DS) technology. This is puzzling given evidence from Chinese technical publications indicating that research on single-crystal technology had begun as early as the 1980s, with significant progress reported by multiple organisations, including those closely linked to aircraft development. Independent assessments by external experts also suggest that China possessed the capability to produce single-crystal turbine blades during the period of the WS-10’s development, raising important questions about the gap between technological capability and its practical application in aerospace engineering.
Copyright Date
January 2011
Publication Date
1-1-2011
Pagination
65p.
Publisher
National Institute of Advanced Studies, Bangalore
Keywords
Technology, Innovation, Aircraft
