View in EDS HTML Full Text PDF Full Text

A Method for Reducing the Temperature Sensitivity of a Single-Base Propellant by Adding Ultra-Fine RDX Particles.

Saved in:
Bibliographic Details
Title: A Method for Reducing the Temperature Sensitivity of a Single-Base Propellant by Adding Ultra-Fine RDX Particles.
Authors: Zhu, Sihan1,2 (AUTHOR), Wang, Yingbo1,2,3 (AUTHOR), Ying, Qixuan1,2,3 (AUTHOR), Jiang, Zongcheng1 (AUTHOR), Zhao, Ruifan1,2 (AUTHOR), Yang, Yinan1,2,3 (AUTHOR), Sun, Tong1 (AUTHOR), Weng, Yeqin1,3 (AUTHOR), Xu, Bin1,3 (AUTHOR), He, Weidong1,3 (AUTHOR)
Source: Polymers (20734360). May2026, Vol. 18 Issue 10, p1156. 19p.
Subjects: Microcracks, Propellants, Sensitivity analysis, Scanning electron microscopes, Thermal expansion measurement, Thermal expansion
Abstract: The temperature sensitivity coefficient greatly affects the interior ballistic performance of propellant charges. Even under consistent loading conditions, variations in environmental temperature can lead to maximum chamber pressure fluctuations of 40–80 MPa, thereby compromising weapon efficiency and operational safety. In order to obtain a single-base propellant with a higher energy and lower temperature sensitivity coefficient, ultra-fine RDX particles were added into the single-base propellant. The difference in thermal expansion coefficients between RDX and the single-base propellant matrix leads to temperature-dependent microcracking. These microcracks increase the burning surface area at low temperatures, compensating for the reduced chemical reaction rate and thereby lowering the temperature sensitivity coefficient. A scanning electron microscope (SEM) was used to observe the inner structure of the single-base propellant with and without RDX particles. The thermal mechanical analysis (TMA) results, together with SEM observations, reveal that the interfaces between the propellant matrix and the RDX particles are temperature-dependent. As a result, the burning surface area of the modified single-base propellant varies with temperature, contributing to a reduced temperature sensitivity coefficient. Closed bomb tests were conducted to verify this inference, and the obtained curves and relevant quickness (RQ) values showed that the modified single-base propellant had stable burning behavior and lower temperature sensitivity. This study leverages the structural interactions between high-energy fillers and polymer matrices to provide a potential strategy for designing climate-resilient ammunition. [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 194117757
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: A Method for Reducing the Temperature Sensitivity of a Single-Base Propellant by Adding Ultra-Fine RDX Particles.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zhu%2C+Sihan%22">Zhu, Sihan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yingbo%22">Wang, Yingbo</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ying%2C+Qixuan%22">Ying, Qixuan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiang%2C+Zongcheng%22">Jiang, Zongcheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Ruifan%22">Zhao, Ruifan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Yinan%22">Yang, Yinan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Tong%22">Sun, Tong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weng%2C+Yeqin%22">Weng, Yeqin</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Bin%22">Xu, Bin</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Weidong%22">He, Weidong</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. May2026, Vol. 18 Issue 10, p1156. 19p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Microcracks%22">Microcracks</searchLink><br /><searchLink fieldCode="DE" term="%22Propellants%22">Propellants</searchLink><br /><searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopes%22">Scanning electron microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+expansion+measurement%22">Thermal expansion measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+expansion%22">Thermal expansion</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The temperature sensitivity coefficient greatly affects the interior ballistic performance of propellant charges. Even under consistent loading conditions, variations in environmental temperature can lead to maximum chamber pressure fluctuations of 40–80 MPa, thereby compromising weapon efficiency and operational safety. In order to obtain a single-base propellant with a higher energy and lower temperature sensitivity coefficient, ultra-fine RDX particles were added into the single-base propellant. The difference in thermal expansion coefficients between RDX and the single-base propellant matrix leads to temperature-dependent microcracking. These microcracks increase the burning surface area at low temperatures, compensating for the reduced chemical reaction rate and thereby lowering the temperature sensitivity coefficient. A scanning electron microscope (SEM) was used to observe the inner structure of the single-base propellant with and without RDX particles. The thermal mechanical analysis (TMA) results, together with SEM observations, reveal that the interfaces between the propellant matrix and the RDX particles are temperature-dependent. As a result, the burning surface area of the modified single-base propellant varies with temperature, contributing to a reduced temperature sensitivity coefficient. Closed bomb tests were conducted to verify this inference, and the obtained curves and relevant quickness (RQ) values showed that the modified single-base propellant had stable burning behavior and lower temperature sensitivity. This study leverages the structural interactions between high-energy fillers and polymer matrices to provide a potential strategy for designing climate-resilient ammunition. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=194117757
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/polym18101156
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 19
        StartPage: 1156
    Subjects:
      – SubjectFull: Microcracks
        Type: general
      – SubjectFull: Propellants
        Type: general
      – SubjectFull: Sensitivity analysis
        Type: general
      – SubjectFull: Scanning electron microscopes
        Type: general
      – SubjectFull: Thermal expansion measurement
        Type: general
      – SubjectFull: Thermal expansion
        Type: general
    Titles:
      – TitleFull: A Method for Reducing the Temperature Sensitivity of a Single-Base Propellant by Adding Ultra-Fine RDX Particles.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zhu, Sihan
      – PersonEntity:
          Name:
            NameFull: Wang, Yingbo
      – PersonEntity:
          Name:
            NameFull: Ying, Qixuan
      – PersonEntity:
          Name:
            NameFull: Jiang, Zongcheng
      – PersonEntity:
          Name:
            NameFull: Zhao, Ruifan
      – PersonEntity:
          Name:
            NameFull: Yang, Yinan
      – PersonEntity:
          Name:
            NameFull: Sun, Tong
      – PersonEntity:
          Name:
            NameFull: Weng, Yeqin
      – PersonEntity:
          Name:
            NameFull: Xu, Bin
      – PersonEntity:
          Name:
            NameFull: He, Weidong
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 15
              M: 05
              Text: May2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 20734360
          Numbering:
            – Type: volume
              Value: 18
            – Type: issue
              Value: 10
          Titles:
            – TitleFull: Polymers (20734360)
              Type: main
ResultId 1