On the synthesis of Bi-based precursors for lead-free solders development
Preliminary studies on the design of lead-free solders precursors by wet chemistry methods are presented. The main objective is to assess the impact of the way of hydroxide precipitates preparation on the metal elements content of the precipitates. Namely, ternary hydroxide mixtures of three systems...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2010-01-01
|
| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2010/1450-53391001011G.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832569460545814528 |
|---|---|
| author | Gandova V. Lilova K. Malakova H. Huber B. Milcheva N. Ipser H. Vrestal J. Vassilev G. |
| author_facet | Gandova V. Lilova K. Malakova H. Huber B. Milcheva N. Ipser H. Vrestal J. Vassilev G. |
| author_sort | Gandova V. |
| collection | DOAJ |
| description | Preliminary studies on the design of lead-free solders precursors by wet chemistry methods are presented. The main objective is to assess the impact of the way of hydroxide precipitates preparation on the metal elements content of the precipitates. Namely, ternary hydroxide mixtures of three systems: a. Cu(II), Bi(III), Sn(II); b. Cu(II), Bi(III), Sb(III); and c. Cu(II), Bi(III), Zn(II) were prepared, firstly, by single-element precipitation and, secondly, by co-precipitation. Thereafter, all mixtures were reduced by using hydrogen gas. Both, the initial mixtures and the reduced samples were studied by X-ray diffraction, optical and scanning electron microscopes. The chemical compositions of the precipitates were determined experimentally and their dependence on the pH was verified. It was found that alloying occurred during the reduction procedure, but in some cases the reduction was not complete (i.e. oxide phases rest in the samples). This might be a huge obstacle to use such an approach for the preparation of lead-free solders. Moreover, the materials obtained after reductions apparently are bulk alloys, thus, the preparation of small-sized metal particles would be a challenge. Another key feature to be addressed in future studies is the correlation between the chemical compositions of the parent solution and these of the corresponding precipitates. |
| format | Article |
| id | doaj-art-67193c0971574dbc8d5afbc6926f282f |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-67193c0971574dbc8d5afbc6926f282f2025-02-02T21:23:11ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392010-01-01461112310.2298/JMMB1001011GOn the synthesis of Bi-based precursors for lead-free solders developmentGandova V.Lilova K.Malakova H.Huber B.Milcheva N.Ipser H.Vrestal J.Vassilev G.Preliminary studies on the design of lead-free solders precursors by wet chemistry methods are presented. The main objective is to assess the impact of the way of hydroxide precipitates preparation on the metal elements content of the precipitates. Namely, ternary hydroxide mixtures of three systems: a. Cu(II), Bi(III), Sn(II); b. Cu(II), Bi(III), Sb(III); and c. Cu(II), Bi(III), Zn(II) were prepared, firstly, by single-element precipitation and, secondly, by co-precipitation. Thereafter, all mixtures were reduced by using hydrogen gas. Both, the initial mixtures and the reduced samples were studied by X-ray diffraction, optical and scanning electron microscopes. The chemical compositions of the precipitates were determined experimentally and their dependence on the pH was verified. It was found that alloying occurred during the reduction procedure, but in some cases the reduction was not complete (i.e. oxide phases rest in the samples). This might be a huge obstacle to use such an approach for the preparation of lead-free solders. Moreover, the materials obtained after reductions apparently are bulk alloys, thus, the preparation of small-sized metal particles would be a challenge. Another key feature to be addressed in future studies is the correlation between the chemical compositions of the parent solution and these of the corresponding precipitates.http://www.doiserbia.nb.rs/img/doi/1450-5339/2010/1450-53391001011G.pdfCu-Bi-ZnCu-Bi-SnCu-Bi-Sbternary systemslead-free solders precursorshydroxide mixturesprecipitationco-precipitationreduction |
| spellingShingle | Gandova V. Lilova K. Malakova H. Huber B. Milcheva N. Ipser H. Vrestal J. Vassilev G. On the synthesis of Bi-based precursors for lead-free solders development Journal of Mining and Metallurgy. Section B: Metallurgy Cu-Bi-Zn Cu-Bi-Sn Cu-Bi-Sb ternary systems lead-free solders precursors hydroxide mixtures precipitation co-precipitation reduction |
| title | On the synthesis of Bi-based precursors for lead-free solders development |
| title_full | On the synthesis of Bi-based precursors for lead-free solders development |
| title_fullStr | On the synthesis of Bi-based precursors for lead-free solders development |
| title_full_unstemmed | On the synthesis of Bi-based precursors for lead-free solders development |
| title_short | On the synthesis of Bi-based precursors for lead-free solders development |
| title_sort | on the synthesis of bi based precursors for lead free solders development |
| topic | Cu-Bi-Zn Cu-Bi-Sn Cu-Bi-Sb ternary systems lead-free solders precursors hydroxide mixtures precipitation co-precipitation reduction |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2010/1450-53391001011G.pdf |
| work_keys_str_mv | AT gandovav onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT lilovak onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT malakovah onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT huberb onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT milchevan onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT ipserh onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT vrestalj onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment AT vassilevg onthesynthesisofbibasedprecursorsforleadfreesoldersdevelopment |