Potential use of Libidibia ferrea and Poincianella pluviosa woods for bows of string instruments
| Autor: | Eduardo Luiz Longui, Juliana Aparecida Moureira, Edenise Segala Alves, Daniel Romeu Lombardi, Francides Gomes da Silva Júnior |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
040101 forestry
0106 biological sciences MADEIRA biology Forestry 04 agricultural and veterinary sciences Poincianella pluviosa biology.organism_classification 01 natural sciences Performance index Botany 0401 agriculture forestry and fisheries General Materials Science Libidibia ferrea Caesalpinia 010606 plant biology & botany Mathematics |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | To determine the potential for use in the manufacture of string instrument bows, the anatomical features, as well as physical, acoustic and chemical properties, of Libidibia ferrea (pau ferro) and Poincianella pluviosa (sibipiruna) wood were compared against those found in Caesalpinia echinata (pau brasil) wood, the established species for modern bow-making. Recent studies recommend relevant parameters of bow quality, such as wood anatomy, physical and mechanical properties. Based on its similarity to C. echinata in terms of ray width, fiber length, specific gravity and performance index (bending stiffness for a bow of given mass and geometry), P. pluviosa presents higher potential for bow-making than L. ferrea. However, P. pluviosa trees grow in plantations with tight spacing, resulting in higher wood density when compared with trees from natural populations. Heartwood color of L. ferrea is closer to the reddish–brown heartwood of C. echinata, thus differing from P. pluviosa. As such, heartwood similarity could be a positive factor for its acceptance by musicians, who are accustomed to bows made with C. echinata wood. However, based on the initial analysis, L. ferrea may show lower workability by its hardness, making it difficult to manufacture bows. Extractive content did not differ between L. ferrea and P. pluviosa and was lower than that of C. echinata. Lignin was higher in C. echinata and lower in P. pluviosa. Holocellulose was higher in P. pluviosa and lower in C. echinata. Overall, preliminary analyses indicate that both woods have sufficient potential to produce bows adequate to the needs of beginners and amateur musicians. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|