Test of B/Ti multilayer reactive igniters for a micro solid rocket array thruster

Shuji Tanaka, Kazuyuki Kondo, Hiroto Habu, Akihito Itoh, Masashi Watanabe, Keiichi Hori, Masayoshi Esashi

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)


In this study, reactive B/Ti multilayer igniters were investigated for the noncontact ignition of a micro solid rocket array thruster in vacuum. When current is supplied to the B/Ti multilayer igniter, the chemical reaction: 2B + Ti → TiB2 + 1320 cal/g occurs, and sparkles are spread to a distance of several millimeters or more. The B/Ti multilayer igniters with three sizes were fabricated, and tested in six configurations of solid propellant. Although one rocket with ignition charge was ignited successfully, the noncontact ignition of the solid propellant was not achieved. However, the B/Ti multilayer igniters themselves generated small impulses of 10-6 N s order, suggesting the possibility of self-propulsion.

Original languageEnglish
Pages (from-to)361-366
Number of pages6
JournalSensors and Actuators, A: Physical
Issue number2
Publication statusPublished - 2008 Jun 15


  • Igniter
  • Microthruster
  • Solid propellant

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering


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