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Title: Mapping supply chain risk by network analysis of product platforms

Modern technology makes use of a variety of materials to allow for its proper functioning. Here, to explore in detail the relationships connecting materials to the products that require them, we map supply chains for five product platforms (a cadmium telluride solar cell, a germanium solar cell, a turbine blade, a lead acid battery, and a hard drive (HD) magnet) using a data ontology that specifies the supply chain actors (nodes) and linkages (e.g., material exchange and contractual relationships) among them. We then propose a set of network indicators (product complexity, producer diversity, supply chain length, and potential bottlenecks) to assess the situation for each platform in the overall supply chain networks. Among the results of interest are the following: (1) the turbine blade displays a high product complexity, defined by the material linkages to the platform; (2) the germanium solar cell is produced by only a few manufacturers globally and requires more physical transformation steps than do the other project platforms; (3) including production quantity and sourcing countries in the assessment shows that a large portion of nodes of the supply chain of the hard-drive magnet are located in potentially unreliable countries. Finally, we conclude by discussing how themore » network analysis of supply chains could be combined with criticality and scenario analyses of abiotic raw materials to comprise a comprehensive picture of product platform risk.« less
 [1] ;  [1] ;  [2] ;  [2]
  1. Yale Univ., New Haven, CT (United States). Yale School of Forestry & Environmental Studies, Center for Industrial Ecology
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
Published Article
Journal Name:
Sustainable Materials and Technologies
Additional Journal Information:
Journal Volume: 10; Journal Issue: C; Journal ID: ISSN 2214-9937
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
Country of Publication:
United States
36 MATERIALS SCIENCE; 29 ENERGY PLANNING, POLICY, AND ECONOMY; Sustainable resource management; Supply chain risk assessment; Social network analysis; Metals criticality; Product platforms
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1422548